If you're looking for router bits that offer superior cuts and smooth performance at prices that can't be beat --- then look no further. Timberline,, a professional division of Amana Tool router bits boast high quality at an affordable price. Each Timberline, router bit is carefully engineered and manufactured to maximize performance while stretching your woodworking budget. This is the basic rabbeting bit. It cuts 3/8-Inch wide and up to 1/2-Inch deep. Switch to one of four optional ball-bearing guides to alter the width of cut. Use in all handheld and table-mounted routers.