Manufacturer Part Number: 03257851|Mill Diameter (Inch)|1/4Mill Diameter (Decimal Inch)|0.2500Mill Diameter (mm)|Number Of Flutes|5End Mill Material|Solid CarbideEnd Type|SingleLength of Cut (Inch)|1/2Length of Cut (mm)|Coating/Finish|AlCrNOverall Length (Inch)|4Shank Diameter (Inch)|1/4Centercutting|YesCutting Direction|Right HandVariable Helix|Variable Index|NoShank Diameter (mm)|Helix Angle|40Chipbreaker|NoMaterial Application|Extended Reach|YesOverall Length (mm)|Length Of Cut Range (Decimal Inch)|Shank Type|Straight-CylindricalLength of Cut (Decimal Inch)|0.5Material Grade|MicrograinShank Diameter (Decimal Inch)|0.25Overall Length (Decimal Inch)|4Flute Direction|Right HandFlute Type|HelicalHelix Style|Shank Diameter Tolerance|-0.0001/-0.0004 inLength Type|Extra LongMill Diameter Tolerance|+0.000 to -0.002 inNeck Length (Decimal Inch)|1.25Neck Diameter (Decimal Inch)|Overall Length Tolerance|+0.060/-0.060 inNeck Length (mm)|Neck Diameter (mm)|Reach Length (Inch)|3/4Reach Length (Decimal Inch)|Reach Length (mm)|Through Coolant|NoTIR Maximum (Decimal Inch)|0.0005TIR Maximum (mm)|Series|STSN540PSC Code|Secondary Workpiece Material Code|Secondary Workpiece Material|Primary Workpiece Material Code|Primary Workpiece Material|UNSPSC Code|27112803