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Your cart is empty. Wide Range Of Uses:
Our Dry Diamond Bits Drills Are Vacuum Brazed So The Drill Can Cut Through Harder Materials At Higher Temperatures. Ideal For Drilling Granite, Ceramic, Glass Stone And Marble Tiles And Similar Materials (Not Suitable For Wood).
When Decorating Kitchen Or Bathroom Walls Or Fixing Mirrors Or Installing Showers In Bathrooms, You Need To Drill Holes In Mirrors Or Tiles Without Breaking Them, So You Need To Use These Diamond Bits To Make Those Holes Very Precise.
Triangle Shank Fit Quick-Change And Lock Firmly, Suitable For Any Electric Drill,Hand Drill,Bench Drill, Preventing Bits From Slipping, Improving Your Working Efficiency.
Specification:
Color: Black
Material: Carbide
Shank Type: Round Shank
Size: 3/16"
Steps To Drill Clean And Precise Holes:
1. Position The Bit At a 45 Degree Angle To Give The Bit a Chance To Start And Prevent The Bit From Slipping.
2. Slowly Move The Drill To a More Upright Position, Continue Drilling And Wiggle The Machine Around.
3. You Don't Need To Apply Too Much Pressure For The Drill To Do The Job. After Drilling, You Will Feel The Drill Bit Coming Out Of The Back Of The Glass Or Tile.
4. Tips For Use: In Order To Avoid Overheating And Damage To The Drill Bit, The Maximum Speed Of The Drill Bit Should Not Exceed 800 Rpm And It Should Not Be Used Continuously For a Long Time.
Package Includes:
10×Dry Diamond Drill Bits 3/16" (5mm)
Scotfree
July 7, 2025
It's pretty clever idea, but takes a while to really get going.
Tony From Whitestone NYC
May 8, 2025
I had originally ordered a kit with various sized bits to drill some mounting holes onto granite rock face to install a Ring Doorbell camera for a neighbor. But he ruined the 3/16 bits by using them with improper technique. Ordered this unit to finish the job.These bits offer the best performance using slow drilling speeds, with low torque. Best to let the diamond do the cutting. You only need to apply enough pressure to ensure the bit maintains contact with the material. The was will help keep the bit cool with this technique. Too fast, and/or too much torque or pressure, and the friction will heat up the bit and melt the wax. Not ideal, as wax is a pain to clean. I've this type of bits successfully to drill holes in glass jars to install a spigot, without needing water cooling. Otherwise, these are well made bit that can last a while if using proper technique. The depth marking takes a little used to. Because they are in millimeters. But the diamond tips have the same length, and the depth marking are consistently across the kit. The 1/4" hex bit insure a smooth lock on to the drill chuck. The included storage case is well made, and doesn't take up too much room in the tool box.
D. P.
March 22, 2025
Worked well
tammy
February 18, 2025
They can be used wet to last a little longer.
toddls
January 14, 2025
These are great for those occasional projects requiring pilot holes in cement or ceramic.Sure, not the very highest quality, and probably not for commercial/industrial use, but worked fine for my small pilot hole needs...and may not need again for years.Great for DIYers, or just to have handy in the toolbox.
Steve from Bradenton
December 25, 2024
When drilling through porcelain, a bit wears out in short order. If you accept that, you can buy inexpensive bits like these or expensive bits from the big box store. Both wear out exactly the same so it makes sense to buy bits like these and discard them once they are worn.
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