Description:1/8 Inch Shank Single Flute End Mill Cutter Tungsten Steel CNC/PCB Engraving Bit 3.175x22mmSpecification:Material: Tungsten SteelShank diameter: 3.175mmCutting edge diameter: 3.175 mmCutting edge Length: 22mm Overall Length: 38.5mmFit for: Acrylic, PVC, wood and other materials.Quantity: 1pcFeatures:Using precise machine tool grinding out the unique spiral blade angle, improve sharpness.Design of oversized spiral and discharge chips, to prevent sticking knife, raising production efficiency.High concentricity, non-stick crumbs, not black, increase the speed.Package Included:1x End MillMore Details: