The DELTA 17-911 1/2-inch chisel bit is designed for use with a mortising attachment mounted on a drill press to cut square holes for various sized mortise and tenon joints. This bit's 5/8-inch shank (chisel) comes with a 1-7/8-inch depth capacity and fits DELTA and Jet benchtop mortisers, as well as most other drill presses with 5/8-inch shanks. This bit's central drill removes most of the material while its hollow chisel squares off the corners of the hole. Built for professional use, this bit features high quality, Austrian-made steel for added sharpness and longevity. This set includes one drill bit and one chisel.
From the Manufacturer
This high-quality chisel and bit set will fit the Delta 14-650 Hollow Chisel Mortiser and the 17-935 and 17-924 Mortising Attachments. Constructed from select steel, they maintain their sharpness longer than standard bits. The center drill removes a majority of the material while the hollow chisel squares off the corners of the hole. Includes one chisel and one bit per set.