Double-edged cutting design, excellent concentricity for fast smooth and accurate trimming cuts for laminates and template work. Industrial Grade Carbide cutters and steel shank. Premium C3 Micro-grain Carbide Cutters for long-lasting performance. Cutting height: 1-Inch , Cutting Diameter: 1/4",5/16",3/8",1/2" with an top end bearing; Shank: 1/4- Inch. Build-up & heat resistant teflon coating can effectively prevent breakage or bending under high-speed working conditions. Use on CNC and other automatic routers as well as hand held and table mounted portable routers. Product Description Applicable Project Materials Suitable for cutting Laminate, MDF, Veneered Plywood, Wood Panels, Particleboard, softwoods and so on. Avoid cutting metal and non-wood materials. All bits must be inserted in the collet in full length. 4pcs Profesional Cove Core Box Router Bits Set Professional Core Box Router Bit Set for reeding, fluting, sign making and general round nose grooving. Cutting Edge Material: Industrial Grade Carbide Shank: 1/4"/ 6.35mm Cutting Depth: 13/16", 7/32", 1/4", 3/8" Cutting Diameter: 1/4", 5/16", 3/8", 1/2" Length: 1-49/64", 1-21/32", 1-5/8", 1-47/64" Application: Sign making and general