The CMT 812.690.11B is a Pattern Router Bit. CMT Fatigue Proof® Steel CMT router and boring bits start from solid bar stock steel. A hot drawing process pulls all the fibers of the steel in one direction resulting in extra strong and resilient bars. This provides a highly uniform steel to machine the bits from - our router bit bodies and shanks can withstand even the most demanding mechanical and thermal stresses, acting as perfect shock absorbers during cutting. Features: * 3/4-Inch Diameter * 1/2-Inch Shank What"s In the Box: * CMT 812.690.11B Pattern Router Bit