Adjustable Counterbore, Counterboring Flat Bottom Holes- 3/8 Cutting Diameter, 3/16 Center Drill Diameter, 1 1/2 Overall Length. Drill is held in place with two opposing set screws. Please note that center drills are not included in the sale of counterbores.
WARNING: Cancer and Reproductive Harm—www.P65Warnings.ca.gov