Solid Carbide Spiral Router Bit with 1/8inch and 1/8 inch Cutting Diameter, 2/3 inch Cutting Length, 1-1/2 inch for LengthUp Cut, Flat Top with Single FluteUsed for Carving, Cutting, Slotting, Milling, Hollow Cutting in Materials Like Hardwood, Medium Density Board, Nylon, Resin, ABS, Acrylic, PVC, MDF, etcThe Design of Single Flute, Larger Spiral Chip Space and Mirror Polishing of CNC Router Bit Makes Non-stick Crumbs, Smooth Cutting and Fast Chip-removalcolor:SilverMaterial:Tungsten steelsize:3.175 x 17 x 38mmPackage Contents:5 x Router BitsOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.