1/4' Diam, 1/4' Shank Diam, 3/8' Length of Cut, Solid Carbide, Single End, Corner Radius Roughing End Mill, ZrN Coated, 2' Overall Length, 30° Helix Angle, Centercutting, Stub Length: Industrial & Scientific. Buy 1/4" Diam, 1/4" Shank Diam, 3/8" Length of Cut, Solid Carbide, Single End, Corner Radius Roughing End Mill, ZrN Coated, 2" Overall Length, 30° Helix Angle, Centercutting, Stub Length: Corner Radius - ✓ FREE DELIVERY possible on eligible purchases. Mill Diameter (Inch): 1/4 。 Mill Diameter (Decimal Inch): 0.2500 。 Number of Flutes: 3 。 Pitch: Coarse 。 Length of Cut (Inch): 3/8 。 Solid carbide provides better rigidity than high speed steel. It is extremely heat resistant and used for high speed applications on cast iron, nonferrous materials, plastics and other tough-to-machine materials.。Zirconium nitride (ZrN) is similar to TiN, but has a higher oxidation temperature. It is commonly used on nonferrous materials including aluminum, brass, copper and titanium.。Specification: Mill Diameter (Inch): 1/4。Mill Diameter (Decimal Inch): 0.2500。Number of Flutes: 3。Pitch: Coarse。Length of Cut (Inch): 3/8。Length of Cut (Decimal Inch): 0.3750。Shank Diameter (Inch): 1/4。End Type: Corner Radius。Material: Solid Carbide。Finish/Coating: ZrN。Overall Length (Inch): 2。Centercutting: Center Cutting。Extended Reach: No。Corner Radius (Decimal Inch): 0.0450。Material Grade: Micrograin。Single or Double End: Single。Cutting Direction: Right Hand。Flute Direction: Right Hand。Length Type: Stub。Helix Angle: 30.00。Overall Length (Decimal Inch): 2.0000。 。 。 。