Excellent adhesion prevention, with a low friction characteristic to DLC (diamond-like carbon coat) for superior efficiency and processing of finish surfaces; Cutting material: aluminum alloy, copper alloy; Smooth turning, chamfering, and deburring; Tip diameter: 0.1 inches (3.8 mm); Effective blade diameter: 1.0 inches (25.0 mm); Total length: 2.6 inches (67 mm); Shank diameter: 0 mm). Surface treatment: 0 mm). Tip angle: 9 0° High Speed Steel (HSS)