6Pcs 6.4/8/9.5/12.7/14/16mm HSS Square Hole Saws Auger Drill Bit Set Mortise Chisel Square Hole Extended Saw Woodworking Tools

Produktbeschreibung

*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. *Use matters: Square hole drill is mainly used for woodworking aspects. *Various existing bits, can only process a circular hole, square hole can not be processed, to machining square hole, must drill the hole or cutting machine processed crude hole, then chisel made from artificial hand. *Using different specifications of the square hole drill, matching the appropriate power of the square hole machine, you can play a square hole to meet the requirements.