Union Tool Carbide End Mill Taper Neck Ball End Mill HTNB HTNB2040-300-2 1 piece

Catalog number: HTNB2040-300-2 Features: * High rigidity achieved by improved tapered neck shape. * Uses HM coating that achieves outstanding heat resistance and lubricity. * Can cut high speed steel materials of 65HRC. * Achieves unprecedented long life. * High R accuracy of ±0.005, outer diameter tolerance of 0/-0.015. Applications: * Workpiece material: Hardened steel (up to 55HRC) (up to 60HRC) (up to 65HRC), pre-hardened steel, copper (wet cutting recommended), carbon steel, alloy steel, cast iron. Specifications: ●Ball radius (mm): 2 ●Neck length (mm): 30 ●Blade length (mm): 3.2 ●Total length (mm): 80 ●Shank diameter (mm): 6 ●Surface treatment: HM coating ●Twist angle 30° ●Ball radius: R2.0 ●Neck taper angle (TN): 1° ●Total length (L): 80 ●Shank diameter (φd): 6 ●Effective length (l): 6 ●Blade length (l): 3.2 ●Neck diameter (φd): 3.87 ●Shank taper angle (Bta): 16° ​​Material/Finish: ●Ultrafine particle alloy (Super MG) Note: ●The shank taper angle is a guideline. ●If interference with the workpiece is required, be sure to measure it and confirm. ●Please be careful of contact between the shank and the workpiece.