Description: Made with industrial micrograin carbide, provides increased strength and utmost resistance, for multiple use, smooth and detailed finish. Fits for professional electric drill, bench drill. Rpm close to 800-1000, while adding water for cooling is an advantage. Suit to rout out density board, hardwood, MDF, particle board, plywood, etc.. Baked on heat resistant coating prevents build-up of sawdust, resin, and pitch. CNC compatible. Two flute carbide cutters with ball bearing guides. Specification: Shake diameter: 1/2" Cutter radius: 1/8", 3/16", 1/4", 5/16", 3/8" Bead sizes: 1/4", 3/8", 1/2", 5/8", 3/4" Total length: 5.8-7.3cm Quantity: 5pcs/set Package Includes: 5 Piece Router Bits Set