Item Type: Chamfering Drill Tool Specification: C25-2D20-43WC03 (20x2 times the diameter) Material: Carbide Outer Edge Angle: 45 Straight Handle Thickness: Approx. 25mm / 1in Diameter: Approx. 20mm / 0.8in Blade Diameter Length: Approx. 40mm / 1.6in 43: Represents the effective processing depth Package List 1 x U Drill Shank 1 x Screwdriver 1 x User Manual 1Can drill multiple short chips during drilling, and the internal cooling system can be used to safely remove chips, which is conducive to the continuity of work. 2The hole is made by drilling with high smoothness, and the tolerance range is small, which can replace part of the rough clock knife. 3The use of drilling technology can not only reduce drilling tools, but also because of the way the head is inlaid with cemented carbide. 4The service life of this CNC drill holder is ten times longer than that of ordinary drill bits. 5Made of hard alloy material, high hardness, sturdiness and durability, anti-oxidation.