HUHAO Square Hole Drill Bit, Steel Hardness Sharp Mortising Chisel Set 1/2-Inch, 1/4-Inch, 3/8-Inch, 5/8-Inch, 5/16-Inch, 9/16-Inch Woodworking Hole Saw Mortising Chisel Drill Bit Set-6pcs

Additional Details from the Manufacturer

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• High-Quality Materials: The drill core is forged from alloy steel and heat-treated for excellent hardness. The drill bit sleeve is made of titanium steel or spring steel to ensure a sharp cutting edge. The square hole drill bit set ensures longevity and reliability even with frequent use.
• Square Hole Mortise Chisel Drill Bit set: : Using different specifications of the square hole drill, matching the appropriate power of the square hole machine, these square hole drill bit include- 1/4 Inch (6.4mm),5/16 Inch (8mm),3/8 Inch (9.5mm),1/2 Inch (12.7mm),9/16 Inch(14mm),5/8 Inch(16mm).
• High Efficiency Square Hole Drill Bit: Save time and effort compared to traditional square hole creation methods. Using this square hole drill bit (mounted on a square tenon machine) to make square holes is faster than using a chisel or other manual methods, and the square hole drill size is more accurate, and these square hole drill bits work more efficiently.
• Easy to Drill: The carbide drill bit tipped is sharp and wear-resistant. With high hardness and long service life. The drill sleeve has a U-shaped design to facilitate the discharge of wood chips and improve the drilling efficiency.
• Square Hole Drill Bits Wide Application: This square hole drill bit is suitable for drilling square holes in wood, including particleboard, channel wood, basswood, pine, etc. Square hole drill bit is suitable for different types of woodworking tasks, versatility! (Note: Not suitable for processing metal, glass, concrete, gypsum board, etc.)