15-20mm HSS 6542/HSS M2 Titanium Coated Deburring Center Hole Stepped Drill Bit

Made from HSS 6542/HSS M2 and Titanium Coated for best combination of strength, heat & wear resistance

This deburring tool with hole allow it to make clean, accurate conical holes in even the toughest materials. It leaves smooth, burr-free edges with an 90-degree chamfer that creates a snug resting place for countersunk screw heads. 

CNC machine manufactured with high accurate size and shape 

CBN grinding wheel milled, smooth and shinning.

15-20mm working range

12mm round shank

Using instruction:

1. Try to keep the drill bits 90 degree with the working plate 

2. Using cooling liquid when drilling to extend the working life of the bits

3. Using proper drilling speed when working with power drills