ITEM NAME:8mm Shank Trimming Carve Router Bit Carbide Milling Cutter Woodworking Tool A#S Product Description Description: Specifications: Product material: cemented car.Usage: the 85mm/3.35" central shaft is used in the electric and manual carving machine, and the 8mm/0.31" handle can be clamped by self tightening so as to carve machine and product. Milling Cutter head width: 50.8mm/2".