Freud 16 560 1 2 Inch Carbide Mortising Router Bit 1 4 Inch Shank Down Shear Design for Clean Hinge Mortises Plywood Dadoes and Splinter Free Grooves Dovetail Bit resulting in an uneven finish resulting in an uneven finish and increased wear on the gearbox spider assembly Model Number 99 513 Overall Diameter (D) 2 3 4 in Shank Diameter (A) 1 2 in Carbide Height (h) 5 8 in Overall Length (H) 2 1 2 in Large Radius (R1) 7 16 in Number of Cutters 4 (Quadra Cut) Maximum RPM 12 This prevents heat buildup and ensures the bit stays sharp through repetitive industrial tasks Perma SHIELD® Coating: Exclusive non stick coating reduces friction