Made of hardened high carbon steel for long-lasting cutting. Open body design allows easy plug clearance. The shear angle design makes them the easiest cutting tools in the market. Versatile tools to make tenons on round or square stock; Dowels up to 3" long; Plugs auto-inject. 1/2" shank for drill in press, lathes, horizontal borers. For making plugs in soft and hardwood. For furniture making, finish carpentry and home shop projects. Precise ground inner and outer cutting edge cut through the hardest wood while maintaining an extremely sharp edge. Specification: Material: Harden high carbon steel Drill hole diameter: 25mm, 35mm Length: 140mm / 5-1/2 Inch, 160mm/5-1/2 Inch Max. length of plug: 70mm / 3 Inch Package Includes: 2 Pieces Plug Cutter, including 1 x 25mm drill hole diameter 1 x 35mm drill hole diameter