The operation and principle of common woodworking square hole drilling

The woodworking square hole drill is a special square hole and keyhole drill used on the square tenoning machine. If there is no square tenoning machine, use the drill core to make a few more holes on the bench drill or electric drill, and then use the square hole drill jacket to tap Tap, be slow when tapping

Square hole drills cannot be used on electric drills. Square hole drills need to be used with square hole drilling machines (square tenoning machines). The square tenon square hole drill is a combination of the middle core + outer sleeve.

Square hole drills are mainly used for woodworking. The reason lies in the existence of an impact body. Using this working principle for drilling steel, iron, and materials requires high tool strength. The specific principle is as follows: The square hole drill is a kind of hardware tool, mainly composed of an inner rotating impact body and an outer impact body. The existing various drills can only process round holes, not square holes. If you want to process square holes, you must use a round hole drill or a cutting machine to make a rough hole and then chisel it by hand.

While the woodworking square hole drill uses the inner rotating body to drill the round hole, it uses the impact force transmitted to the outer impact body by the electric hammer to break the material between the round hole and the square head wall, and process it into a square hole at one time, and the dust is broken. Can be discharged from the slag pipe. Using square hole drills of different specifications and matching square hole machines with appropriate power, square holes that meet the requirements can be punched. It can reduce the labor intensity of construction workers, speed up construction, reduce construction costs, and is suitable for construction, installation, decoration, and decoration industries.