10x 1/8" 3.175mm Carbide CNC Double 2 Two Flute Spiral Bits End Mill Router 22mm Material : solid carbide Shank diameter (SD): 3.175mm; Cutting edge diameter (CED): 3.175mm; Cutting edge length (CEL): 22mm Suitable Materials: Nylon, Resin, ABS, Acrylic, PVC, MDF, hardwood and other three-dimensional sculpture, surface machining, ect For: 3D relief sculpturing, cutting, engraving, slotting, milling,ect We ship it by e-package,usually it takes 7-14 business days