Series: 1743Coating: AlTiN CoatedDiameter: 0.2500 1/4inEnd Type: Corner RadiusHelix Angle (Degree): 30 DegreesLength of Cut (Decimal Inch): 0.375inNumber of Flutes: 3 FlutesRadius: 0.015inReach Length (Decimal Inch): 1.25inShank: 1/4inPrimary Workpiece Material: Steel ~30HRC, Steel 30~40HRC, Hardened Steel ~55HRCSecondary Workpiece Material: Hardened Steel ~68HRC, Stainless Steel, Cast Iron, Nickel & Cobalt, Titanium AlloyUnit of Measure: Inch