Big Horn 18915 # 8 Complete Countersink W/Taper Drill Replaces W. L. Fuller # C8M

Big Horn 18915 # 8 Complete Countersink W/taper. Replaces W. L. Fuller # C8M. Both the Countersink bits & the collars have hex nuts for easy adjusting tightening & accurate positioning. Four flute countersink bodies leave a clean, sharp hole and the adjustable stop collar allows you to either set the screw head flush with the surface.