Product Information
- Product size: 6mm,6.4mm,8mm,9.5mm,10mm,11mm,12mm,12.5mm,12.7mm,14mm,15mm,16mm,18mm,19mm,20mm,22mm,25mm.
- This is great for drilling square holes in wood with a mortising machine Specification
- Square hole drill can not 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.















