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About this item
Precision Engineered Design: Our core drill bit is designed with universal 1-1/4"-7 thread, making it easy to quickly assemble onto standard core drilling equipment, providing versatility and convenience.
Dust-Free Wet Cutting: Our diamond core drill bit reduces dust production through water cooling and lubrication, making it crucial for indoor or enclosed workspaces, minimizing dust pollution to operators and the surrounding environment.
Perfect Kit: Our concrete core drill bit includes an additional 3.15 in / 80 mm diamond saw blade for cutting tasks, eliminating the need for separate purchases. It allows for quick and efficient cutting of various hard materials, including rocks, concrete, ceramics, metals, and more.
Stable and Efficient: Our masonry core drill bit is crafted with high-quality carbon steel components and a diamond-grit head, ensuring it boasts excellent wear resistance and an extended lifespan. Laser welding technology ensures no tooth loss or weld detachment, maintaining cutting efficiency.
Wide Applications: Our wet drill core bit is ideal for drilling into reinforced concrete, red bricks, concrete, foam bricks, and other tough materials. It is widely used in installations for air conditioning, pipelines, stair railings, highways, airports, and various construction scenarios.
Our core drill bit is crafted from high-quality carbon steel with diamond-grit teeth. Diamond is one of the hardest materials on Earth, ensuring outstanding wear resistance. The diamond-grit core drill bit remains sharp and extends its lifespan when cutting and grinding tough materials.
Laser welding technology ensures exceptional wear resistance and high-temperature stability for the diamond core drill bit, making it ideal for various drilling conditions, even in high-temperature environments. It's less prone to tooth loss and weld detachment, resulting in increased durability.
Our wet core drill bit is for wet cutting. Water cooling and lubrication reduce drill bit wear, prolonging its lifespan, and minimizing dust.
The concentric shaft design provides more stable drilling operations. It reduces drill bit vibration and swing, decreasing the likelihood of the drill bit getting stuck or deviating from the track, ensuring smoother operations.
The wet drill core bit ensures clean and precise holes in tough materials like reinforced concrete, red bricks, concrete, foam bricks, and more. It comes with a diamond saw blade, allowing you to cut various materials with precision, smoothness, and efficiency.
Specification
Item Model Number
108400BC
Diameter
Φ 4.25 in / 108mm
Adapter Specification
Inner Thread 1-1/4"-7
Maximum Core Depth
14 in / 355 mm
Welding Method
Laser Welding
Wet/Dry Application
Wet
Compatible Machines
Water Drill, Core Drill Rig
Compatible Cutting Materials
Reinforced Concrete, Red Brick, Concrete, Foam Brick, etc.
Product Dimensions
18.5 x 4.3 x 4.3 in / 470 x 108 x 108 mm
Net Weight (Including Accessories)
6.7 lbs / 3.04 kg
Questions and Answers
Typical questions asked about products: Is the product durable? ...
Bought a 4 inch and a 3 inch. Used the 3 inch today and on the second hole two chunks of metal broke off. Also the set screw for the guide bit kept coming loose. A little disappointed as I had 2 more holes to drill.
thank you makes my job way easier know.https://www.vevor.com.au/hole-saw-kit-c_11426/vevor-dry-diamond-core-drill-3-76mm-dia-hole-cutter-for-concrete-masonry-brick-p_010847462202
hey, easy to use and helpful thank you. website is easy too
good quality and quick shipping,
great pricing too, thank you.
if needed i will buy more like candy.
We love sprint car racing.
Used it to drill two holes in flagstone set in concrete. Drill bit worked good, with one exception. It was difficult to extricate the core that was drilled. Core removal slots should be more numerous and on more than two sides of the drill bit.
As with the other Vevor Diamond Core Bits. Long life is Great Value and Quality. I would highly recommend it to any contractor needing this type of equipment.
The Diamond core products that Vevor sells are excellent. Value & Quality. Drilled 6 holes and no noticeable wear and tear on bit. I would highly recommend it.
This core bit worked perfectly to core a hole for a recent mini-split HVAC install through a CMU wall. It chewed right through the block with ease. I used a standard 1/2' Milwaukee drill and a spray bottle in my application and the bit survived to drill another day. I think you could get a lot of use out it before replacing as long as you keep the bit wet. Bottom line is it is a good value and good quality. The included grinding disk is a plus and also good quality.
Tony Spagnuolo 
NICHOLAS DRIVER 
DrSolar Racing 
