6-10-13-16 mm

45#CS
HRC58-52

4 straight plug cutters set and 4 four-tooth tapered plug cutters set to choose from, diameter sizes include: 6mm/10mm/13mm/16mm.
One style cutter allows a woodworker to cut a a predictably sized hole to a specific depth in a board, (to counter-sink a fastener). The matching tool, cuts a plug from a piece of scrape board, to fill the first hole. The wood plug is glued in using wood glue and then after it dries sanded smooth with the surface. The result Blends in with the rest of the surface.
Conceal Screw Heads: When making a piece of furniture you oftentimes need to use screws in an area that is visible. To conceal them you countersink them and then using one of the plugs you made with these plug counters you cover the countersunk hole.
Use Standard Cutters To Eliminate Imperfections In Wood. Carbon steel is durable, precision production, smooth surface, suitable for bench, speed not too fast, otherwise will smoke, charred. Perfect for woodworking openings, round wood stopper processing. Can be in the bench drill, hand drill and other professional equipment to use, recommend bench drill (because hand drill will play crooked).
The drilling speed should not be too high, or easy to produce smoke, burnt black and so on. Package Included: 1 Set (4pcs) 1/4" 3/8" 1/2" 5/8" Wood Plug Cutter Cutting Tool Drill Bit Set.