Black Oxide Coating: Each Plug cutter is black oxide coated for rust resistant longevity and stylish looking and matching your other tools in your tool box
Used with bench drill, hand drill. To avoid slipping or eccentricity during drilling, we recommend to use bench drill, or fix the drill
Plug Cutters recommend to work with Drill Press at low speed; The speed should not be too fast, it is easy to produce smoke, burnt and so on
Wood Plug Cutters: Ideal for cutting tapered or round plugs for woodworking such as concealing screw head, matching wood grain, filling countersunk holes, and removing imperfections in workpiece