Item Type: U Drill Shank_x000D_ Specification: C25-2D15-33WC03 (15x2 times the diameter)_x000D_ Material: Carbide_x000D_ Outer Edge Angle: 45_x000D_ C25 represents the handle, Straight Handle Thickness: Approx. 25mm / 1in_x000D_ 2D15: 2D represents 2 times the diameter, represents the blade length, Diameter: Approx. 15mm / 0.6in, 2D15 represents 15x2 = approx. 30mm / 1.2in(blade diameter length)_x000D_ 33: Represents the effective processing depth 1U?drill shank drills multiple short chips, and can use the internal cooling system to safely remove chips, conducive to the continuity of work 2The hole made by drilling has good surface finish and small tolerance range, can be used instead of some rough drill 3The use of drilling technology can not only reduce drilling tools, but also make its life more than ten times that of ordinary drills because of the way the head is inlaid with cemented carbide 4Adopt cemented carbide material, possess high hardness, wear resistance, strength and toughness 5This U drill shank have stable structure, excellent performance and long service life 1 x U Drill Shank 1 x Screwdriver 1 x User Manual