Item Type: 1/2in Shank Router Bit Material: Carbon steel main body + alloy cutter head Shank Diameter: 1/2in Cutter Head Diameter: 1-3/4in Package List 2 x Router Bits 2 x Gaskets 2 x Storage Box 1For DIY Production: These router bits are mainly used for furniture making or woodworking projects, and they are highly practical. 2Excellent Materials: Sturdy carbon steel main body and alloy cutter head, has good wear and impact resistance. 3Anti Backlash Design: With anti backlash design, suitable for automatic desktop portable machines such as CNC. 4Standard Size: Equipped with standard 1/2in shank and 13/4in cutter head for easy installation and precise cutting. 5Applicable Boards: Suitable for materials and surfaces such as medium density fiberboard, particleboard, plywood, panel, softwood, hardwood, etc.