Amana Tool RC-1004 Insert Solid Carbide Flush Trim 3/4 D x 30mm CH x 1/2 Inch SHK w/ Lower Ball Bearing Router Bit

In a production environment, insert tooling reduces downtime to a minimum. Each throw-away insert knife in this flush trimming bit has multiple edges. Rotate the knife to expose a fresh cutting edge. Tips can be replaced at any time, even mid-job, without changing the router setup. Has four cutting edges per knife.