HSS and Cobalt Drill Bits

Professional Manufacturer for HSS Cobalt Steel Granite Masonry  Concrete Tile SDS PLUS MAX Drill Bits Wood Auger Drill Bits

Twist Drill bits is used most in making holes.

It's mainly divided into follows types according to application:

1, For metal, pvc and plastic drilling - HSS Twist drill bits (made from High Speed Steel)

2, For masonry, wall, glass and tile drilling - Masonry Twist drill bits (the shank is made from carbon steel or chrome steel, the tip is made from tungsten carbide)

3, For concrete and stone drilling - SDS plus and SDS max Twist drill bits (the shank is made from high quality chrome alloy and the tip is made from high quality tungsten carbide)

4, For wood drilling - brad point Twist drill bits, flat drill bits and auger Twist drill bits (usually made from carbon steel, sometimes made from HSS steel for special purpose)