Specification:Cutting Diameter: 22mm / 0.87",Cutting Edge Length: 80mm / 3.15",Effective Cutting Edge Length: 66mm / 2.6“Cutting Diameter: 18mm / 0.71",Cutting Edge Length: 80mm / 3.15",Effective Cutting Edge Length: 63mm / 2.48“Shank Diameter: 1/2"Overall Length: 150mm / 6.0"Material : High Speed Steel 4241 (HSS 4241)Finish Type: PolishedShank Type: Round ShankTool Flute Type: SpiralHardened to: 62-63 HRCColor: Silver ToneDescriptions:1. High-speed steel tool is good for most general purpose applications, featuring a combination of hardness and toughness for wear resistance2. Reduced shank drill expand the size range capacity of a portable drill chuck. Common flute and overall length for minimal adjustment during tool changes.3. Polished treatment adds lubricity.
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