SUPERRABBET 2'' DIA 1/2 SHANKThis ingenious tool features both interchangeable cutting edges and an interchangeable guide collar, enabling you to cut a wide range of rabbets. Changing the collars on the twin ball-bearing guide steps the cut width in 1/16" increments from flush through 3/4" with five extra "plywood" sizes. Between the standard and optional collars, there are 18 different rabbet sizes available. The deep guide collar design adds stability to the tool for hand-held router operations. The basic 2"-diameter bit includes a hex key, instructions, and all necessary parts for 5/8" and 3/4" width rabbets. The "RC" version has extra-long double-edged carbide inserts which enables the bit to cut 30mm high. Inserts can be rotated or replaced without removing the bit from the router. Maximum RPM 22,000. Use in a table-mounted router. Not for use in a handheld router!