Item Type: Router Bit Material: Carbon Steel Main Body + Alloy Cutter Head Shank Diameter: 1/4in Cutter Head Diameter : 1-3/8in 1、[FRAME MAKING] The router bit is mainly used to create architectural photo frames, with precise lines and easy operation. 2、[EXCELLENT MATERIAL] The main body is made of carbon steel with alloy blade, which have good wear and impact resistance. 3、[APPLICABLE MATERIAL] Suitable for wood, medium density fiberboard, particle board, plywood, softwood, hardwood and other surfaces. 4、[WIDE APPLICATION] Commonly used in woodworking projects, making doors, office cabinets, bedroom shelves, outdoor frames, etc. 5、[CNC CUTTER TOOL] Specially designed for milling machine or desktop woodworking engraving machine, is a good CNC tool.