11PCS 6mm-68mm Dry Diamond Drill Bits, No-Water Drilling for Porcelain Tile Granite Glass, Storage Case & Angle Grinder Adapter Included

Product name: (Aluminum box) brazing drill bit 11 pieces set

Production process: Brazing process

Material: Diamond + high manganese steel 

Quantity : 11 Pieces

Size: 6+8+10+12+16+20+25+35+55+68MM+1 adapter bar (With aluminum case)

Spindle thread: 5/8-11, M14, M10

Applicable models: Angle grinder, Hand drill

Application：Suitable for tiles, rock slabs, marble, quartz stone, granite, ceramic tiles, concrete and other types of stone drilling work 

Features:

1. Widened high-density emery layer, precision inlay process, solid sand does not fall off, strong cutting force, sharp and durable

 2.Sharp head notch design, reduce resistance, realize fast drilling, smooth notch without chipping

3. High manganese steel body forged in one piece, strong impact resistance, hardness of HRC60 or more, safe and anti-breakage

4. Brazing process strengthens the structure, high temperature resistance even in dry drilling and waterless operation, built-in cooling wax automatically cools down the temperature, prolonging the service life

5. Accurate and fast opening, a variety of specifications can be selected to meet different needs, aluminum box box presents an adapter, hand drill can also be operated