5Pcs Square Hole Drill Bit, Woodworking Mortiser Drill Bit, High Speed Steel Mortising Chisel Set Wood Hole Saw with Twist Drill 1/4 5/16 3/8 1/2 Inch for Carpenter - cejue, */lpo

• UPC   880726169867
• 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 use. Size: 1/4 Inch (6.4mm), 5/16 Inch (8mm), 3/8 Inch (9.5mm), 7/16 Inch (11mm), 1/2 Inch (12.7mm),chooseing 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 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 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 Widely Used - Great for drilling square holes in wood with a mortising machine or a mortising attachment.