There are two main types of core drilling: hard coring and soft coring. This refers to the type of lithology each method is suited for. Soft coring is used when taking a core sample of unconsolidated material and is capable of reaching depths of 500 feet (or more—but this is what is typical for environmental industry projects). With the country's largest supply of diamond core drill bits, A-Core is qualified and properly equipped to handle concrete drilling projects of any size.Welcome to Core Drilling New York, We pride ourselves on being prepared for all your needs. Core Drilling New York is a family owned and operated business. We specialize in Concrete Coring,Core Drilling, and Concrete Cutting services in New York City, and surrounding areas. Our professional and highly skilled crew are experts in using the ...Sep 28, 2017 ... I just drilled thru 2 feet of poured concrete with rebar in it, with a 4inch drill bit and Jack hammer. Only took 4 hours! With the country's largest supply of diamond core drill bits, A-Core is qualified and properly equipped to handle concrete drilling projects of any size. CONCRETE CUTTING and CORING. Prime Drilling & Sawing Services a Division of Jack Moore Associates, Inc. We're Hiring eMail us Or call now. Welcome to Prime DSS ... Core Drilling. 404,900 holes cored - Concrete Slab Sawing. 10,092,000 Square Feet cut - ...Diamond Core Drilling Machine,Wet & Dry Handheld Concrete Core Drill Rig,1900RPM 1-1/4" Thread Core Drill Rig with Water Pump Water Pipe for Concrete Brick Stone Block,with 1.25in/2.5in/4in Drill Bits. Corded Electric. $299.99 $ 299. 99. $20.00 coupon applied at checkout Save $20.00 with coupon. About This Product. The 4 in. Diamond core drill bit with V-Tip for concrete drilling by Archer PRO delivers high performance and long life at affordable prices. This core drill bit is optimized for a wide range of construction materials including concrete, masonry, pavers, bricks and blocks. Constructed with grade A diamond crystals. Maersk Drilling A-S Registered Shs News: This is the News-site for the company Maersk Drilling A-S Registered Shs on Markets Insider Indices Commodities Currencies Stocks5.3.1 Reasons for taking and testing cores. The reasons for drilling cores for strength testing are commonly to assess one or a combination of the following: •. the quality of the concrete provided to a construction (Potential Strength) •. the quality of the concrete in the construction ( In - situ Strength) previously known as Actual ...We're excited to offer you an engaging and informative session that will introduce you to our range of services, industry expertise, and innovative solutions. As a leading provider in concrete cutting, coring, and … AUSTIN: (512) 295-0235. SAN ANTONIO: (210) 446-3305. Marek Sawing & Drilling. Share. Watch on. Marek Sawing and Drilling offers the latest techniques in concrete sawing, concrete coring, wall sawing, selective demolition and concrete breaking and hauling. A-Core drilling is one of the many services that A-Core offers. With the country’s largest supply of diamond core drill bits, A-Core is qualified and properly equipped to handle concrete drilling projects of any size. A-Core can drill concrete holes as small as 3/4” up to 73” in diameter and any depth.May 9, 2023 ... Using a core drill has many advantages over other concrete cutting methods. The process of core drilling quickly and efficiently produces clean ...Key benefits of core drilling: • Core drilling is the cleanest, most economical way to drill into a concrete wall or slab. • Core drilling offers contractors flexibility and a solution to potential problems. • It keeps the structural integrity of surrounding areas intact. • Core drilling can be done at any depth. • Precision drilling.Where Concrete Saw cutting and Core Drilling Meets Perfection Specializing in Concrete Saw Cutting & Core Drilling Solutions. For over 24 years, Siler’s has provided expert concrete saw cutting, core drilling, and flatwork solutions to satisfied residential & commercial customers in Seattle, Tacoma, Bellevue, Redmond, and beyond.These diamond ultra wet core bits deliver up to 20% longer run-time versus their previous generation of wet core bits. The diamond wet core bits are specifically designed for use with the MX FUEL Core Drill and corded core drills for maximum versatility. The 4" dry core bit has a maximum RPM of 660 with 3mm thin kerf for faster holes.Reasonable selection of process parameters in drilling and coring is of great significance for reducing coring time and working costs. To reduce exploration costs and improve rock breaking efficiency, vertical shaft drilling rigs are used to study the influence of drilling rig working parameters, environmental …Concrete / Masonry - Cutting & Drilling Equipment. Unfortunately, no items in this category are available for rent near your location. Call us at 800-667-9328 for more information or assistance.DMS 400 is a powerful and sturdy electric core drill and stand for medium to heavy core drilling where reliability and high productivity is needed. An ideal sturdy system suitable for walls, floors or roofs up to 350 mm diameter. The stand is quick and easy to set up and connect to the drill motor and provides stability when drilling for water ...Oct 3, 2023 ... Can core drilling effectively cut through reinforced concrete? Absolutely. Armed with a robust diamond-tipped bit, core drilling can efficiently ...CONCRETE CUTTING and CORING. Prime Drilling & Sawing Services a Division of Jack Moore Associates, Inc. We're Hiring eMail us Or call now. Welcome to Prime DSS ... Core Drilling. 404,900 holes cored - Concrete Slab Sawing. 10,092,000 Square Feet cut - ...Diamond Core Drill Bit This professional diamond core bit with a saw blade is high-frequency welded, providing a rapid and clean drill. 5/8"-11 universal thread is suitable for multiple machines, apply to concrete and brick. key Features Premium Diamond Material The core bore drill is made of high-quality diamond and aluminum alloy.Diamond Core Drilling Machines for All Types of Drilling Jobs. Welcome to U.S. Diamond Tool, your go-to destination for premium cutting and drilling tools. Specializing in serving construction contractors, we offer an extensive range of high-quality equipment, including concrete drills, blades, drilling and sawing machinery, and construction tools.Diamond Core Drill Bit This professional diamond core bit with a saw blade is high-frequency welded, providing a rapid and clean drill. 5/8"-11 universal thread is suitable for multiple machines, apply to concrete and brick. key Features Premium Diamond Material The core bore drill is made of high-quality diamond and aluminum alloy. Bon Tool 1-3/8-in Wet/Dry Diamond Core Drill Bit Brick, Concrete, Stone. This diamond core drill bit is the perfect tool for cutting through concrete and handling other heavy demolition jobs. It features an ergonomic design that makes the tool easy for use on the job and even easier for cleanup. CORE DRILLING, CONCRETE SAWING & DEMOLITION. Serving Northern California & Bay Area. SACRAMENTO AREA 11358 Sunrise Gold Circle Rancho Cordova, CA 95742 (916) 853-9224. ... Diamond Core Drilling From 3/8”up to 48” available for special projects. Concrete, granite, block, brick, asphalt & any combinations. ...Husqvarna DM 220 Concrete Core Drill. Husqvarna Core Drill is an easy-to-handle core drill that can be used both wet and dry when drilling through concrete floors and walls. The DM 220 has a handle that can accept both a water feed system through the spindle for wet drilling as well as a vacuum port attachment for dust …Some of the concrete coring applications are utility holes, drainage, maintenance holes, HVAC, and structural testing. We use concrete core drilling for both ...Concrete core drilling is a process used in the construction industry to cut a hole in concrete structures, floors, walls or ceilings. Some of the applications for … A core drill is a drill specifically designed to remove a cylinder of material, much like a hole saw. The material left inside the drill bit is referred to as the core. Core drills used for concrete are Diamond Core Drills and are water cooled. 5/8” to 36” diameter core sizes drill depth. Core Drilling FAQs. 48-22-8429. Shop heavy duty concrete core drilling tools including diamond coring motors, coring rigs, water tanks and more.Concrete core drilling involves drilling perfectly rounded holes in concrete walls, floors, ceiling, and other structures. This fine-tunes the concrete structure to accommodate …Buy 4in Concrete Core Drill Bit (Closed-Head) from Core Drills. Used to drill cores in concrete or asphalt for lab testing. Shop Certified MTP.CORE DRILLING up to 26" diameter at any depth, inverted drilling, wall and floor coring. WALL CUTTING at any depth, deep cutting from single side for windows, doors and openings, indoor and outdoor. SLAB CUTTING indoor up to 15" deep with electric 480v saw for trench cutting, fume and dust free. SAW CUTTING outdoor …Effortless Drilling: Our concrete core drill has a rustproof steel forged output shaft to bear more pressure, an upgraded one-touch water pipe connector for a stable water supply, and a thickened guide rail to stabilize the machine and reduce shaking. Built for Heavy-Duty Concrete Drilling: Easy to maneuver in drilling reinforced concrete, red ...Core drills used for concrete and hard rock generally use industrial diamond grit as the abrasive material and may be electrical, pneumatic or hydraulic powered ...KSEIBI 619076 Wet Concrete Core Drill Bit, 3-Inch Diameter for Drilling Concrete, Marble, Granite, Brick, and Hard Masonry 16-Inch Drilling Depth, 1-1/4"-7 Arbor, 10mm Segment Height Diamond Hole Saw. 4.6 out of 5 stars. …BLUEROCK Tools Model 10Z1 CORE DRILL HIGH OUTPUT CONCRETE CORING DRILL & STAND . This is a brand NEW Model 10Z1 portable coring drill with a stand. It's a high quality high output unit. These drills use the standard 1-1/4" threads used by most concrete core drills. They are designed to …Key benefits of core drilling: • Core drilling is the cleanest, most economical way to drill into a concrete wall or slab. • Core drilling offers contractors flexibility and a solution to potential problems. • It keeps the structural integrity of surrounding areas intact. • Core drilling can be done at any depth. • Precision drilling.Jan 18, 2021 ... Concrete coring's purpose is to drill perfect holes into concrete walls, floors, ceilings, and other structures. Holes can be drilled at ... Diamond Core Drilling Machine,Wet & Dry Handheld Concrete Core Drill Rig,1900RPM 1-1/4" Thread Core Drill Rig with Water Pump Water Pipe for Concrete Brick Stone Block,with 1.25in/2.5in/4in Drill Bits Core Drilling. Concrete core drilling or “coring” is the process of drilling perfectly round holes through concrete walls, floors and other concrete structures.If you need to drill cores from a concrete floor to install posts or anything wider than 2 inches, it's best to hire a masonry contractor or a handyperson. For less than 2 inches, you can use a regular drill with a core bit. Do not use a hammer drill since these are not designed for hammering. DIY Concrete Drilling vs. Hiring a ProThe procedures for properly removing concrete samples by core drilling are given in ASTM C 42. Cores must be taken using diamond-studded core bits when the cores are to be tested for strength. A shot drill may be acceptable for other applications when the core is drilled vertically. However, diamond-studded core bits are recommended for other ...What is Core Drilling? Concrete core drilling is a process where a concrete cylinder from a concrete structure is removed. Then, it is done to create holes. Core drilling is applied in many industrial sectors, including plumbing, electrical, manholes, drainage, HVAC, and structural testing. According to the needs, different sizes can be …Concrete core drilling is a highly effective way to create necessary openings for plumbing, HVAC, sprinkler, or electrical systems. At KC Coring & Cutting, our inspectors are highly trained and OSHA certified and will use reliable, productive equipment to safely drill holes to any depth that are a quarter-inch to 66 inches in diameter.ABC Concrete Cutting offers core drilling for various applications such as plumbing, electrical, structural, and asphalt coring. They have different size drills and bits to drill …Concrete Insight LLC, a excellent service, from GPR, Core Drill. Very Professional and experience! Atlantic Contracting Group Inc. —Robert Ho. GET IN TOUCH WITH US. CALL US NOW: (571) 236-8522. Concrete Insight offers affordable concrete Scanning; concrete testing, and concrete core drilling services. We are …Core drilling produces cores of sub-surface material and is the most commonly used method of obtaining information about the presence of minerals or precious metals, as well as rock formations. ... To put things into perspective, core-drilling a 6″ hole is like cutting a rectangular concrete slab with a 18.85″ linear edge. That's a big cut.No matter if you’re installing new cabinets in your kitchen or want to hang a large painting on your living room wall, you’ll need a drill to complete a lot of projects around the ...Regardless of whether dental cement is left from orthodontic work or from the placement of a restoration, it should always be removed by a dental professional. Dentists and dental ...Core Drilling | Reliable Concrete Cutting & Drilling. Cutting and Sawing. Diesel Slab Sawing. Wall/Track Sawing. Wire Sawing. Chain Sawing. GPR Concrete Scanning. Soft … Diamond Core Drilling Machine,Wet & Dry Handheld Concrete Core Drill Rig,1900RPM 1-1/4" Thread Core Drill Rig with Water Pump Water Pipe for Concrete Brick Stone Block,with 1.25in/2.5in/4in Drill Bits With the country's largest supply of diamond core drill bits, A-Core is qualified and properly equipped to handle concrete drilling projects of any size.The Diamond Ultra™ Core Drill Bit sizes range from 5/8” to 14” to meet all your needs when drilling into even the toughest materials. Sizes from 5/8” – 1-1/2” are compatible with all core drills with a 5/8”-11 thread. ... Thin kerf, segmented diamond rim for faster holes in concrete and rebar drilling applications; Designed to ...Core drilling with rebar. The core drilling process gets a little more complicated when rebar is present in the concrete floors or walls being drilled. If you ...BLUEROCK Tools Model 4Z1WS 2-Speed Concrete Coring Drill WITH STAND "AMAZON's Best Sellers Rank: #1 in Power Core Drills." Model 4Z1 is the highest selling, number 1 ranked concrete core drill on Amazon for a good reason! COMES WITH CORING RIG! USED PORTABLE OR IN THE RIG! Everything, really. We bring a team player attitude to every project we’re a part of to help your project proceed without a hitch. We’re also fully licensed and insured to perform a wide range of concrete jobs across the state of Colorado. At Miller Coring, you get honest service you can trust and fair pricing that doesn't break your budget. Concrete Surgeons, Inc., now VBE and IVOSB, is the premiere concrete sawing and drilling company in Central Indiana founded on the principle of providing excellent service to all of our customer. ... Core Drilling. Our hole diameter ranges from ¾” up to 60” Read More. Caption text. Wall Sawing. A-Core drilling is one of the many services that A-Core offers. With the country’s largest supply of diamond core drill bits, A-Core is qualified and properly equipped to handle concrete drilling projects of any size. A-Core can drill concrete holes as small as 3/4” up to 73” in diameter and any depth. For reliable concrete core drilling services in Texas and Louisiana, choose Ashton Sawing and Drilling, the trusted name in the industry.Core Dilling. Core drilling is a process used to create precise round holes in both horizontal and vertical surfaces. Common applications for core drilling may include test cores, dowels, anchors, and penetrations for plumbing, electrical, and HVAC. Donley Concrete Co. can drill ½” diameter to 60” diameter holes with unlimited drilling depth.Concrete drilling is the process in which a core drilling device makes cylindrical holes in concrete walls, roofs and floors. Mostly, the drill is equipped with a diamond-tipped bit that cuts through the concrete quickly. These cores can be used for electrical, plumbing or HVAC installations or renovations. The best part about concrete …CORE DRILLING, CONCRETE SAWING & DEMOLITION. Serving Northern California & Bay Area. SACRAMENTO AREA 11358 Sunrise Gold Circle Rancho Cordova, CA 95742 (916) 853-9224. ... Diamond Core Drilling From 3/8”up to 48” available for special projects. Concrete, granite, block, brick, asphalt & any combinations. ...BLUEROCK Tools Model 4Z1WS 2-Speed Concrete Coring Drill WITH STAND "AMAZON's Best Sellers Rank: #1 in Power Core Drills." Model 4Z1 is the highest selling, number 1 ranked concrete core drill on Amazon for a good reason! COMES WITH CORING RIG! USED PORTABLE OR IN THE RIG!03 82 13 - Concrete Core Drilling. 41 00 00 - Material Processing & Handling Equipment 41 33 00 - Machining Equipment 41 33 73 - Sawing Equipment. 41 36 00 - Assembly and Testing Equipment 41 36 23 - Cutting Equipment. View More. Project Experience Service Work/Repairs; Gallery. Crack ChasersCore Drilling up to 31" diameter hole, any depth ; G&S partners with AQM who offers professional contract concrete cutting and core drilling. AQM can cut or drill concrete and asphalt on floors, walls and ceilings. Concrete can be of any strength or aggregate; AQM can supply our own water, power and cleanup crewsConcrete core drilling can be called for in a wide variety of applications, such as plumbing, HVAC, cabling for indoor and residential projects, roadway and slab holes for drainage, rebar tie-ins, and doweling drilling for industrial projects. It can also be used for quality analyses of materials and to allow for the installation of recessed ...Some of the concrete coring applications are utility holes, drainage, maintenance holes, HVAC, and structural testing. We use concrete core drilling for both ...Mar 4, 2023 · On the surface you want to drill, use the hand drill to drill a hole a small distance away from where you want to cut the core. The drill stand will be mounted on this hole. From the drill machine accessories, insert the anchor bolt and drive it in to ensure it is tightly held in the hole. Take the threaded rod and screw it tightly into the ... By using soft bond, medium bond and hard bond diamond segments, Catalyst Construction Company has the flexibility to handle from 5000 psi concrete to heavily reinforced concrete. We use average core bits ranging from 3/4 inch to 12 inches in diameter and typically drill through 12 inches or more in depth. By …Key benefits of core drilling: • Core drilling is the cleanest, most economical way to drill into a concrete wall or slab. • Core drilling offers contractors flexibility and a solution to potential problems. • It keeps the structural integrity of surrounding areas intact. • Core drilling can be done at any depth. • Precision drilling.Concrete drilling is the process in which a core drilling device makes cylindrical holes in concrete walls, roofs and floors. Mostly, the drill is equipped with a diamond-tipped bit that cuts through the concrete quickly. These cores can be used for electrical, plumbing or HVAC installations or renovations. The best part about concrete …Regardless of whether dental cement is left from orthodontic work or from the placement of a restoration, it should always be removed by a dental professional. Dentists and dental ...Diamond Core Drilling Machines for All Types of Drilling Jobs. Welcome to U.S. Diamond Tool, your go-to destination for premium cutting and drilling tools. Specializing in serving construction contractors, we offer an extensive range of high-quality equipment, including concrete drills, blades, drilling and sawing machinery, and construction tools.2. Drill a pilot hole. Place your drill on the mark and drill briefly, using a low speed (if your machine has speed control) or in short bursts (if it doesn't). Make a shallow hole (⅛ to ¼ inches / 3 to 6 mm) to help guide your drill for the real hole.Learn what concrete core drilling is and how it works with a diamond core drill. Find out the applications, advantages, and services of concrete coring by Kingdom …Concrete core drilling is designed to remove the perimeter of the hole, an annulus of material rather than an entire cylinder of the material being drilled. The material left inside the drill bit is referred to as the core or the slug. Concrete line drilling is an effective method for removing any thickness of concrete when other methods cannot ... Core drilling is a type of service in which a drill is used to remove a cylinder of material, called a ‘core.’. This type of concrete cutting is used in many applications, including but not limited to: Walls, floor slabs, and ceilings for electrical and communication services, cabling, plumbing, or HVAC. Slab and roadway holes for doweling ... Mar 25, 2023 ... Core drilling is also known as concrete core drilling, concrete coring or diamond drilling. Essentially, it's when holes are made in a (usually ...Ccre drilling for concrete is an essential process used in many industries for creating precise, clean holes in concrete structures.Oct 12, 2023 ... Concrete Core Drilling Benefits and Uses · Precision: Core drilling is highly precise and can create holes of various diameters and depths with ...Concrete core drilling is the process of drilling clean, circular holes in a concrete surface. It is one of the most effective ways to create openings for plumbing, …Sep 28, 2017 ... I just drilled thru 2 feet of poured concrete with rebar in it, with a 4inch drill bit and Jack hammer. Only took 4 hours!
Core Drilling up to 31" diameter hole, any depth ; G&S partners with AQM who offers professional contract concrete cutting and core drilling. AQM can cut or drill concrete and asphalt on floors, walls and ceilings. Concrete can be of any strength or aggregate; AQM can supply our own water, power and cleanup crews. Free south park streaming
Diamond Core Drills Show me diamond coring machines – hand-held and rig-based, wet and dry – for all coring in concrete and masonry. Drill Stands Show me drill stands and column extensions designed to fit rig-based diamond coring machines. Water Management System Show me water management systems designed to enable full water autonomy with ... Where Concrete Saw cutting and Core Drilling Meets Perfection Specializing in Concrete Saw Cutting & Core Drilling Solutions. For over 24 years, Siler’s has provided expert concrete saw cutting, core drilling, and flatwork solutions to satisfied residential & commercial customers in Seattle, Tacoma, Bellevue, Redmond, and beyond. With the country's largest supply of diamond core drill bits, A-Core is qualified and properly equipped to handle concrete drilling projects of any size. Hilti Diamond Core Drills - DD 110-W Core drill - Compact, light diamond coring machine for wet or dry handheld coring from 16-162 mm (5/8 - 6-3/8) in diameter. ... Dry coring in aerated concrete, sandlime block, perforated brick, solid brick and clinker Drilling of sockets for the installation of electrical fittings ...Some of the concrete coring applications are utility holes, drainage, maintenance holes, HVAC, and structural testing. We use concrete core drilling for both ...Feb 6, 2020 · Feb 06, 2020. Concrete core drilling involves cutting a cylindrical section of concrete from a larger structure. Because concrete is such a hard material, concrete coring is carried out using a diamond core drill. At Kingdom Concrete Drilling & Sawing Inc., we provide concrete coring and drilling in Toronto and Hamilton for a variety of ... Key benefits of core drilling: • Core drilling is the cleanest, most economical way to drill into a concrete wall or slab. • Core drilling offers contractors flexibility and a solution to potential problems. • It keeps the structural integrity of surrounding areas intact. • Core drilling can be done at any depth. • Precision drilling.Core drilling also lets electric and hydraulic rigs drill holes at any angle, whether vertical or horizontal. Mechanics. Core drilling is a way to cut a round hole in a solid material like concrete, stone, or metal. The core drilling process usually takes approximately 10 hours, depending on the job's size. In this process, a drill bit with ...First, make sure that the water is flowing 100% and coming through the bit before you start. Once the water is flowing, turn the drill on and get it up to full speed. Remember that …Get free shipping on qualified Coring Drill Bits products or Buy Online Pick Up in Store today in the Tools Department. ... masonry concrete drilling. sds-max rotary hammer core bits. sds-max shank. small hammer. steel point. thread tool. tipped core bits. 6 in. dia. 11 in. diamond core bit.BLUEROCK Tools Model 10Z1 CORE DRILL HIGH OUTPUT CONCRETE CORING DRILL & STAND . This is a brand NEW Model 10Z1 portable coring drill with a stand. It's a high quality high output unit. These drills use the standard 1-1/4" threads used by most concrete core drills. They are designed to …Effortless Drilling: Our concrete core drill has a rustproof steel forged output shaft to bear more pressure, an upgraded one-touch water pipe connector for a stable water supply, and a thickened guide rail to stabilize the machine and reduce shaking. Built for Heavy-Duty Concrete Drilling: Easy to maneuver in drilling reinforced concrete, red ...BLUEROCK Wet Type core bits have the most common 1-1/4" x 7unc Female thread size. This is a direct fit on all of our BLUEROCK Z1 concrete core drills. Please confirm compatibility with your drill; See our Core Drill Package Deals with core bits included; See our drill adapters for Hilti, Spline, Bi+, SDS Plus, SDS Max, Chuck Shank … Core drilling is a type of service in which a drill is used to remove a cylinder of material, called a ‘core.’. This type of concrete cutting is used in many applications, including but not limited to: Walls, floor slabs, and ceilings for electrical and communication services, cabling, plumbing, or HVAC. Slab and roadway holes for doweling ... Concrete coring is a core drilling technique that involves drilling cylindrical holes into concrete structures (floors, walls and ceilings) to accommodate new conduits, plumbing piping, HVAC ducting, reinforcements and other systems. Various environments may have restricting factors, such as noise-sensitive spaces such as hospitals, healthcare ... These diamond ultra wet core bits deliver up to 20% longer run-time versus their previous generation of wet core bits. The diamond wet core bits are specifically designed for use with the MX FUEL Core Drill and corded core drills for maximum versatility. The 4" dry core bit has a maximum RPM of 660 with 3mm thin kerf for faster holes. We would like to show you a description here but the site won’t allow us.Core Drilling. Core drilling creates a cylinder-shaped hole in an area of concrete, removing a “core” up to any depth. This method is utilized by plumbing, electrical, and mechanical contractors who need to run pipe through a floor or wall. It can also be used in the transportation or architecture fields to create holes in existing ...Data loss can be a devastating experience for both individuals and businesses. Whether it’s accidental deletion, a system crash, or a hardware failure, losing important files can l...What is Core Drilling? Concrete core drilling is a process where a concrete cylinder from a concrete structure is removed. Then, it is done to create holes. Core drilling is applied in many industrial sectors, including plumbing, electrical, manholes, drainage, HVAC, and structural testing. According to the needs, different sizes can be ….