23pcs Woodworking Chamfering Countersunk Drill Bit Set 5 Flute Chamfering Drill Wood Plug Cutter Automatic Center Punch Drill

Features:  -[High-quality material]: Made of high-quality high-speed steel, with high hardness and wear resistance, durable and practical.  -[Unique Combination]: A variety of multi-size woodworking drill bits are combined into a set for you to choose from.  -[Wide application]: Suitable for DIY, household and general construction/engineering use. Very suitable for wood, fiberboard, particle board, plywood, plastic, PVC and soft metals. Suitable for hand drills, bench drills and electric drills.  -[Easy to carry]: Plastic box with bubble film packaging, convenient for you to organize and carry, and is not easy to damage during transportation.  Specification:  7pcs 3-Pointed Countersink Drill Bit:  Material: High carbon steel.  Size: 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm.  For:  Drilling pilot holes,the drill bit large chip flute and five edge chamfers allows faster and easier discharge of sawdust. With the L-shape hexagon key provided, you could easily  remove five bevel chamfer or adju