This Mortising Chisel is great for drilling square holes in wood with a mortising machine or a mortising attachment.
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.
Size: 1/4 inch (6.35mm),5/16（8mm),3/8(9.5mm),1/2(12.7mm),9/16(14mm),5/8(16mm)
Material: High Speed Steel
Hardness: HRC 48-50
Clamping shank diameter: 19mm (Round)
1/4/6pcs x Woodworking Square Hole Drill Bit
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Order in good condition
Ordered 07.09.20, in the mail 18.09.20G. The product corresponds to the description. Shipping and delivery fast. Quality is good.
качество лучше чем того что было на станке.
it's as described, have used and works good, would buy again