Eyech 8pcs Wood Plug Cutter Drill Bits Taper Claw Type Wood Plug Cutter Set Woodworking Hole Saw Cutting Tool 5/8" 1/2" 3/8" 1/4" Specification : Size : 5/8"(wood plug 15.8mm) 1/2"(wood plug 12.7mm) 3/8"(wood plug 9.5mm) 1/4"(wood plug 6.3mm) Shank: Round shank Shank diameter: 9.3mm Material: 45# Carbon Steel Feature: -8 piece plug cutter set makes perfect plugs for counter bored holes -Made of carbon steel, titanium-coated, sharp, solid and durable for long life -Chamfered cutters make tapered plugs to fill countersunk holes, easy to operate -Use pay attention to rest, avoid burning knife, Oil can prolong life -Uses for bench drill and hand drill, recommended bench drill, easy to center The Package Included: 4 standard plug cutters 4 four-tooth Chamfered Cutters