Description: Core box bit is designed for reeding, fluting?sign making and general round nose grooving.. It is especially effective in fluting flat surfaces. Steel bits that meet the high demands of Woodworking and Hardware. Industrial Quality Tungsten Carbide Cutters Specification: Shank Diameter:1/4'' Cutter Diameter:1/2''(12.7mm) Cutting Length: 25.4mm Overall Length: 56mm Number of Flutes: 2 Materials: Carbide Package Includes: 1 Piece Router Bit Note: Please allow 1-2mm measurement error and color difference