CMT 651.727.11 Insert Carbide Straight Bit 1/2" Dia. 1/2" ShankThe CMT 651. 727. 11 is a 1 2 inch diameter insert carbide straight router bit with 3 4 inch cutting length and 1 2 inch shank. Features two reversible insert knives for economical routing of grooves, dadoes, and mortises in hardwood, softwood, plywood, and MDF. SPECIFICATIONS Order Number 651. 727. 11 Cutting Diameter 1 2" Cutting Length (I) 3 4" Shank Diameter 1 2" Overall Length 2 1 2" Number of Knives 2 Knife Type Reversible Insert Knives Rotation