The Square Hole Drill Bit creates perfect squares every time effortlessly! You'll definitely need this for your next project!
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Square hole drill cannot be used on an electric drill, drill square holes need to fit a square hole drill drilling (mortise and tenon machine) to use. Mortise and tenon square hole drilled by the terrible + outer sleeve in the middle of the combination.
Reduce labor intensity of construction workers, speed up the construction speed, reduce construction costs for construction, installation, renovation, decoration industries.
Use matters: Square hole drill is mainly used for woodworking aspects.