This coolant deep hole drill bits is not easy to wear, increase the service life of the drill. 0.6 micron grain tungsten steel cemented carbide, using micro grain tungsten steel base material, has higher strength, is not easy to wear, and belongs to the exclusive drill bit for high hardness and high cutting applications.

Brand	Xinfa	Coating	TiCN or as requested
Product Name	Coolant Twist Drill	Outer Edge Angle	140
Cooling Method	Inner Coolant	Shank Length	124mm,133mm

1. Use for the process of structural steel; alloy steel; stainless steel and other common materials; 2. Precise centering ability which enables to gain stable dimensional accuracy and fine surface quality;