Features: High-density polished， wear-resistant， high temperature， and good rigidity. Cost-effective， improve efficiency and reduce costs. Mainly used in cutting and hook slots. Specification:Type: 2 Flute spiral BitShank diameter: 3.175mmCutting edge diameter: 3.175 mmCutting edge Length:22mm Overall Length: 38mmQuantity: 1Material: tungsten steel (cemented carbide)Applicable Materials: Acrylic， PVC， high density board， hardwood and mold etc. Package included:10x 2 Flute Spiral Bits End Mill