6Pcs Woodworking Square Drill Bits Set, HSS Wood Mortising Chisel Countersink

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Product Description
Woodworker Square Hole Mortise Chisel Drill Bit Tool Set Kit for Wood,
Woodworking Hole Saw Mortising Chisel Drill Bit Set Attachment for Drill Press 1/4" 5/16" 3/8" 1/2" 9/16" 5/8"
Size: 1/4 Inch (6.4mm), 5/16 Inch (8mm), 3/8 Inch (9.5mm),1/2 Inch (12.7mm), 5/8 Inch (16mm), 9/16 Inch (14mm)
Made of high-speed steel. Heat treatment, HRC48~50, high hardness, lengthened core, high concentricity.
Great for drilling square holes in wood with a mortising machine or a mortising attachment. Fits all mortising machines and drill press attachments.
Square hole drill is mainly used for woodworking aspects.
It will get double effect by matched use with mortise and tenon machine.The square hole punching needs to use electric drill, hammer & other tools.
Reduce labor intensity of construction workers, speed up the construction speed, reduce construction costs for construction, installation, renovation, decoration industries.
Clamping shank diameter: 19mm (Round)
Features:
▲ Professional wood drill bit, suitable for construction, installation, renovation, decoration industry, etc.
▲ The utility model in the hole drilled by the rotary body, while the impact of the use of hammer impact force transmitted to the outer,
body the material crushing round hole and square head wall, a one-time processing of a square hole, and the dust can be broken slag discharged from the tube.
Note:
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.
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