Connecting rod: used to connect to an electric drill or other power tools.
Square hole chisel: with a square blade at the bottom, used to cut square holes.
Center round hole and slotted hole: a round hole is set in the center of the square hole chisel, and there are slotted holes on the side for chip removal and heat dissipation.
Drilling round drill bit: some square hole openers have built-in round drill bits for pre-drilling, which makes it easier for the square blade to cut into the material.
Chip guide spiral groove: helps to discharge the debris generated during the cutting process and prevents clogging.
Features and Advantages
Efficient cutting: The square hole opener can quickly and accurately cut square holes through rotational motion and the design of the square blade.
Smooth chip removal: The chip guide spiral groove and slot hole design effectively discharge debris, reduce cutting resistance, and extend tool life.
Easy to operate: Used in conjunction with an electric drill, it is easy to operate and suitable for a variety of materials.
Strong applicability: It can be used for a variety of materials such as wood, gypsum board, plastic, metal, etc. to meet the needs of different scenarios.
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