Product Family
Master Steel Solid Carbide Ball Nose End Mill HPC

Description
- Precision-ground GARANT Master Steel ball nose end mill for very high accuracy.
- Application: For precision steel machining and copy milling.
- Feature: Type N.
- Feature: Four cutting edges.
- Feature: 30 deg helix.
- Feature: Ground recess.
- Feature: TiAlN coating.
- Feature: Tolerance radius contour +/-0.005 mm.
- Advantage: Improved cutting-edge protection and high bending strength from ultra-fine-grain substrate.

Product Specification
- Product type: Master Steel Solid Carbide Ball Nose End Mill HPC
- Article family: 207490
- Size: 20 mm
- Dimensions - Diameter: 20 mm
- Dimensions - Cutting length Lc: 26 mm
- Dimensions - Length L1: 50 mm
- Dimensions - Neck diameter D1: 19.5 mm
- Dimensions - Overall length L: 104 mm
- Dimensions - Shank diameter Ds: 20 mm
- Dimensions - Feed fz steel <900 N/mm^2: 0.15 mm
- Dimensions - Feed fz steel <900 N/mm^2 alternate: 0.18 mm
- Cutting Data - Steel <500 N/mm^2: 270 m/min
- Cutting Data - Steel <750 N/mm^2: 240 m/min
- Cutting Data - Steel <900 N/mm^2: 220 m/min
- Cutting Data - Steel <1100 N/mm^2: 190 m/min
- Cutting Data - Steel <1400 N/mm^2: 170 m/min
- Cutting Data - Hardened steel <55 HRC: 140 m/min
- Cutting Data - INOX <900 N/mm^2: 90 m/min
- Cutting Data - Cast iron: 400 m/min
- Notes - New-generation GARANT Master Steel family.