【Principle】:This product is mainly composed of inner rotating impactor and outer impactor. While using the inner rotary body to drill the circular hole, the impact force transmitted by the electric hammer to the outer hammer body is used to break the gap between the circular hole and the square head wall. The material can be quickly processed into square holes, and the dust is discharged from the slag discharge pipe.
【Labor-Saving Design & Well Workmanship】: The gear transmission and long handle design save the effort and allow people to easily and efficiently complete each cut without feeling tired for a long time. Every component in this set is made to be very fine, without burrs. Good workmanship can make items last longer.
【High Performance】: These tenon bits are made of high-quality steel, threaded structure, high hardness, very sharp, easy to drill. It has low resistance and high efficiency. It has low resistance and higher working efficiency. These high-quality materials can avoid the problems of component breakage and de-formation, which provides you with a safer environment.
【Service】: We are very sorry for the shopping experience you have experienced. If you have any problems with the goods you received, please contact us and we will serve you 24 hours a day.
【Note】: This product is only an accessory in the picture, it needs to be used with a square hole drill or a square tenon machine, and cannot be used with an electric drill! Mainly used for drilling square grooves in professional grade wood, not suitable for hard materials such as metal, glass, gypsum board, etc.