【Local Shipping】HSS Drill Bits Square Drill Bits Flush Chisel Drill Bits Square Hole Woodworking Drill Bit Tool

HSS Drill Bits Square Drill Bits, Flush Chisel Drill Bits Square Hole Woodworking Drill Bit Tool      Feature: 1、This is great for drilling square holes in wood with a mortising machine . 2、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. 3、Mortise and tenon square hole drilled by the terrible + outer sleeve in the middle of the combination. 4、Reduce labor intensity of construction workers, speed up the construction speed, reduce construction costs for construction, installation, renovation, decoration industries. 5、Arc design, exquisite sharpen durable.     Specification： Name: Square Hole Saw Product size: 6mm,1/4inch(6.4mm), 3/8inch(9.5mm) Material: Spring steel   Package Includes: 1* Bit