Woodworking Square Hole Drill Bits Mortice Auger Mortising Chisel Carpenter Tool

Specifications Materialhigh carbon steelSize6 6 4 8 9 5 10 12 5 12 7 15 16 18 19 20mmQuantity1pcsFeatures 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 Reduce labor intensity of construction workers speed up the construction speed reduce construction costs for construction installation renovation decoration industries Arc design exquisite sharpen durable Use matters Square hole drill is mainly used for woodworking aspects Package included 1 X Square Hole Drill Bit