Feature●Blade Diameter: 0.4 inches (10 mm)●Total Length: 2.5 inches (64 mm)●Shank diameter: 0.25 inches (6.35 mm) hex shaft●Embedded Depth: 0.8 inches (20 mm)●Weight: 0.9 oz (28 g)●Material: High Speed Steel●Country of Manufacture: JapanDescription
No. 58 X High Speed Hexagonal Shaft Countersunk Cone (Countersunk).