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: Triangle Shank
Size: 3/16", 1/4", 5/16", 3/8", 1/2", 9/16", 5/8"
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:
1×Dry Diamond Drill Bits 3/16" (5mm)
1×Dry Diamond Drill Bits 1/4" (6mm)
1×Dry Diamond Drill Bits 5/16" (8mm)
1×Dry Diamond Drill Bits 3/8" (10mm)
1×Dry Diamond Drill Bits 1/2" (12mm)
1×Dry Diamond Drill Bits 9/16" (14mm)
1×Dry Diamond Drill Bits 5/8" (16mm)