ITEM NAME:2pcs 3.175mm Carbide CNC Router Bits Flute End Mill Tools 17mm FT 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: Flute Router Bit Shank diameter: 3.175mm Cutting edge diameter: 3.175 mm Cutting edge Length:17mm Overall Length: 38.5mm Material: tungsten steel (cemented car.High-density polished, wear-resistant, high temperature, and good rigidity. Cost-effective, improve efficiency and. Cutting edge Length:17mm. Applicable Materials: Acrylic, PVC, high density board, hardwood and mold etc.