4pcs Woodworking Square Drill Bits Set, HSS Wood Mortising Chisel Countersink Bits Woodworker Hole Saw Power Tool Kits 1/2 1/4 5/16 3/8 Inch

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  • High quality - these square hole drill bits made of high speed steel, through heat processing, with high hardness drill bits, and sharp-edged square chisel, long life
  • Widely Used - Great for drilling square holes in wood with a mortising machine or a mortising attachment.
  • Easy to Use - It will get double effect by matched use with mortise and tenon machine.The square hole punching needs to use electric drill, hammer or other tools.
  • Save time - these woodworking morstising chisel bits can reduce labor intensity of construction workers, speed up the construction speed, reduce construction costs for construction, installation, renovation, decoration industrie
  • Drills precise holes with little pressure -- 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 - 1 2-Inch(12.7mm), 1 4-Inch(6.4mm), 3 8-Inch(9.5mm) , 5 16-Inch(7.94mm)

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