VEVOR Core Drill Bit, 4.25"/108mm Wet/Dry Diamond Core Drill Bits for Brick and Block, Concrete Core Drill Bit with Pilot Bit Adapter and Saw Blade, 9.5" Drilling Depth, 5/8"-11 Inner Thread, Laser Welding
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About this item
Precision Engineered Design: Our core drill bit is designed with universal 5/8"-11 thread, making it easy to quickly assemble onto standard core drilling equipment or handheld drill machines, providing versatility and convenience.
Dual-Use Wet and Dry: Our diamond core drill bit is suitable for both dry and wet cutting conditions. Dry cutting provides faster speeds, while wet cutting reduces dust, catering to various project needs. It's simple to operate with high flexibility.
Wide Applications: Our wet/dry drill core bit is ideal for drilling into hard concrete, bricks, stone, and other tough materials. It is widely used in installations for air conditioning, pipelines, stair railings, highways, airports, and various construction scenarios.
Perfect Kit: Our concrete core drill bit comes with a pilot bit for precise alignment, preventing the drill bit from deviating from the target location. An additional 3.15 in / 80 mm diamond saw blade is included for cutting tasks, eliminating the need for separate purchases.
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.
VEVOR Core Drill Bit, 4.25"/108mm Wet/Dry Diamond Core Drill Bits for Brick and Block, Concrete Core Drill Bit with Pilot Bit Adapter and Saw Blade, 9.5" Drilling Depth, 5/8"-11 Inner Thread, Laser Welding
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.
In dry-cutting mode, you'll experience unmatched cutting and debris removal speeds, boosting work efficiency. In wet-cutting mode, water cooling and lubrication reduce drill bit wear, prolonging its lifespan and minimizing dust.
Insert the pilot bit into the adapter, ensuring the drill's tilt angle matches the adapter bolt hole angle, and tighten. Be sure to insert the adapter into the core drill bit and secure it. The pilot bit must be centered on the drill bit, with a center deviation of no more than 1 millimeter.
The wet/dry drill core bit ensures clean and precise holes in tough materials like 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
107300AA
Diameter
Φ 4.25 in / 108mm
Adapter Specification
Inner Thread 5/8"-11
Maximum Core Depth
9.5 in / 241.3 mm
Welding Method
Laser Welding
Wet/Dry Application
Wet or Dry
Compatible Machines
Handheld Drills
Compatible Cutting Materials
Red Brick, Concrete, Foam Brick, etc.
Product Dimensions
11.4 x 4.3 x 4.3 in / 290 x 108 x 108 mm
Net Weight (Including Accessories)
4.9 lbs / 2.2 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 
