Puncher Hinge Self Centering Hinge Twist Drill Bits Doors Screw Hole Saw Woodworking Reaming Cabinet Tapper Tool Hardware Sets

[Feature]:1. Professional drilling tools are suitable for mounting door hinges.2. Positioning accuracy, will not shift. Can effectively improve the drilling efficiency!3. Spring-loaded guide centering the built-in bit in the hole of the door hinge, cabinet hinge, bracket, or hardware where the center hole is required.4. Different sizes suitable for most people use, small size for smaller hinges and hardware, decorative box drilling.Medium to large sizes are ideal for hinges and hardware.[Specification]:Twist Drill Material: high-speed steelHandle Shank Size: 1/4"(6.35mm) Hex[Note]:When opening the hole according to the appropriate adjustment of the hardness of wood, if the wood soft, can choose a small one, if the wood hard, choose the corresponding or large one.