Snappy Tools Countersink Drill Bit Set - HSS Twist Drill with Quick Change Chuck 43400 Woodturning Finishing Oil Self-Tapping Screw Mode reduces walking

Self-Tapping Screw Mode reduces walking when you are self-tapping screws as well as reduces overdriving

Head Type: Bulb

Spindle Speed Cast Iron RPM:642

Teeth: 180

Snappy Tools Countersink Drill Bit Set - HSS Twist Drill with Quick Change Chuck 43400 Woodturning Finishing Oil Self-Tapping Screw Mode reduces walkingDrill the pilot hole and countersink or counterbore for screws in one easy step. Countersink to drive the head of the screw flush with or slightly below the surface. Easily control depth using an optional stop collar. Counterbore to drive the screw below the surface and plug the hole. The 82 countersink angle matches the angle on the head of most wood screws. Drill a pilot hole or clearance hole and countersink or counterbore for standard screws.