Features:

1. The square hole drill cannot be used with an electric drill, the square hole drill needs to be combined with a square hole drill (mortise and tenon machine) in order to be used. Combination of the dreaded middle + jacket drills out the square holes for the mortise and tenon.

2. Reduce the labour intensity of construction workers, speed up construction, and reduce construction costs for the construction, installation, decoration and other industries. 

3. Various existing drills can only process round holes, not square holes. To process square holes, you must drill holes or use a cutting machine to process rough holes, and then chisel them by hand.

4. The utility model in the hole drilled by the rotary body, the use of the hammer head impact force transfer to the outer body at the same time, the material will be broken round hole and square head wall, a one-time processing of a square hole, and dust can be broken slag from the tube discharge.

5. Use different specifications of the square hole drill, with the appropriate power of the square hole machine, you can hit the square hole to meet the requirements.

Specification

Shank diameter: 19mm

Weight: 640g / 1240g

Package included

4/7* square hole drill bit

Note

1. Due to manual measurement, please allow 1-3mm error. Please make sure you don't mind before ordering.

2. Please allow 1-3 gram weight error. Please make sure you don't mind before ordering.

3. Due to different lighting in the photos and differences in monitors, the pictures may not reflect the actual colour of the object. Please make sure you don't mind before ordering, thank you!