High quality and best price double-headed drill 

Product Description

         Double-headed drill contain cobalt is metal drill bits fully ground from solid heat resistant high speed steel produced.

        The HSS  twist drill bit ,a high speed steel bit,comes in many sizes,as well as shapes and functions.Usually,the shape for most bits is the twist form.The front edges cut the material while the spirals remove the debris from the hole.Twist brill bits are normally made of alloys and are designed for a specific task.

Specifications

1.Process:Fully Ground

2.Surface Finishing: White, Cobalt 

3.Size available:from 3.2-5.2mm