7pcs HSS Door Self-centering Hinge Drill Bit Set Hinge Tapper Hole Puncher Woodworking Tools with Wrench

Features:
Made of high-speed steel, has high hardness, fine wear resistance and heat resistance.
Wood chips will automatically drain from the holes on both sides of the t-op of the drill bit and will not catch the drill bit.
It is used to make the hole of the door and window hinge screw hole. The drill tapper can help fix the position and prevents slippage during the drilling process.
Includes seven different sizes of tapper to meet a variety of operational needs.
It is not only suitable for wood materials, but also for metal sheet punching of aluminum alloy doors and window or even stainless steel.