General description 10 cutters including straight, router, V-groove, beading, cove, slot cutter and more to meet your different needs. Technical specifications Material: High speed steel Shank size: 1/8 inch (3mm) Length: 40mm Compatibility and accessories Suitable for most rotary tools including DREMEL, Craftsman, Chicago and more. Usage Usually used on electric trimmers for cutting, routing and other woodworking. Can engrave on a variety of materials: wood, ABS, acrylic, PVC, plastic, etc. Ideal for detail work such as building and sanding dollhouse furniture, model trains, or model buildings and airplanes.