ITEM NAME:23-piece set of hexagon shank 5-blade three-point countersunk bit tool set Description: Package Included: 22 pcs woodworking chamfer drilling tool and 1 L-wrench includes 6pcs 1/4inch Hex Shank 5 Flute 90 Degree Countersink Drill Bits, 7pcs Three Pointed Countersink Drill Bit. 8pcs wood plug cutters drill bits and 1pcs Automatic center punch for marks workpiece with a dimple, creating a starting point that prevents screws and drills from wandering. Wood Plug Cutter Drill Bit: 3/8inch shank 8pcs wood plug cutter drill bits. Used for tapered 1/4inch, 3/8inch, 1/2inch, 5/8inch wood plugs to cover recessed screw holes, able to cut plugs to 22mm/23mm/25mm/26mm in length. Hex 5 Flute Countersink Drill Bit: 1/4inch hex shank 5 flute countersink drill bits with 6 different diameter sizes. Used for sinking 90 Degree 6 different sizes Holes into Wood and PVC boards Countersunk Screws and Fixings. Three Pointed Countersink Drill Bit: 7pcs three pointed countersink drill bits, the drill bit large chip flute and five edge chamfers allows faster and easier discharge of sawdust. Material: Mainly made of cemented car.Used for sinking 90 Degree 6 different sizes Holes into Wood and PVC boards Countersunk Screws and Fixings. 8pcs wood plug cutters drill bits and 1pcs Automatic center punch for marks workpiece with a dimple, creating a starting point that prevents screws and drills from wandering.