Router, Planer Accessories -Straight Edge Router Shank with 1/4'' Shank: 18.3mm Highlights Generic Brand Straight Edge Router Shank with 1/4'' Shank: 18.3mm Description: Double Flute Straight bit router 1/4'' Arbor Diameter - Carbide Height Cut all composition Materials, Composites Wood, Hardwoods and Softwoods Use Handheld or Table Mounted Milling Machines Materials: Carbide Specification: Material: Tungsten Alloy Steel Diamter Shank Diameter: 1/4'' (6.35mm) Outside Diameter: 12.3mm (#A), 18.3mm (#B) Cutter Diameter: 25.4mm (#A), 24.4mm (#B) Overall Height: 63.4 mm(#A), 62.2mm(#B) Package Include: 1 Piece Router Bits Note: Please allow 1-3mm due to manual measurement, make sure you do not mind before you order. make an offer. The colors may be different for the different displays, please understand.