Primarily for use with portable routers, these rabbeting bits can be used with various bearings to produce a wide range of cut depths. Inserts are sharpened on all 4 sides. The collar sets will enable you to produce 17 different rabbet sizes including rabbets for under-size plywood applications. For rabbet sizes over 12,7mm (1/2”) we suggest cutting in multiple shallow passes until you reach the desired depth. Available in 12mm (15/32”) and 12,7mm (1/2) shank diameters.