Drills By CoCud

• Drill Bit Size - Cutting edge diameter: 28mm / 1.1\"; shank diameter: 1/2\"; cutting edge length: 82mm / 3.23\"; overall length: 150mm / 5.9\"; hardness: HRC62-65; point angle: 135 degree; cutting direction: right hand.
• Wide Applications - Widely used for drilling stainless steel, aluminum alloy, cast iron, high carbon steel, copper, hard wood, hard plastic. Use on drill presses and bench drills. Reduced shank drill bits expand the size range capacity of portable drill chucks.
• Spiral Flutes - Sharp spiral flutes provide fast, neat and smooth cuts. The spiral groove facilitates the export of metal chips, which saves time and effort in operation. Designed with small pockets to keep coolant near the cutting edge.
• 9341 High Speed Steel - The twist drill bit is high hardness, good toughness, high strength. Black nitride coating has excellent wear resistance, corrosion resistance and high temperature resistance. Provides better lubricant application, smoother drilling.
• Useful Tips - The appropriate lubricant is beneficial for cutting or cooling, improving dimensional accuracy and extending tool life. Reduce forward and reverse speed. Use harder aluminum and wood.

• Drill Bit Size - Cutting edge diameter: 20mm / 0.79\"; shank diameter: 1/2\"; cutting edge length: 80mm / 3.15\"; overall length: 150mm / 5.9\"; hardness: HRC65-66; cutting direction: right hand.
• Wide Applications - Widely used for drilling stainless steel, aluminum alloy, cast iron, high carbon steel, copper, hard wood, hard plastic. Use on drill presses and bench drills. Reduced shank drill bits expand the size range capacity of portable drill chucks.
• Spiral Flutes - Sharp spiral flutes provide fast, neat and smooth cuts. The spiral groove facilitates the export of metal chips, which saves time and effort in operation. Designed with small pockets to keep coolant near the cutting edge.
• 6542 High Speed Steel - The twist drill bit is high hardness, good toughness, high strength. Black nitride coating has excellent wear resistance, corrosion resistance and high temperature resistance. Provides better lubricant application, smoother drilling.
• Useful Tips - The appropriate lubricant is beneficial for cutting or cooling, improving dimensional accuracy and extending tool life. Reduce forward and reverse speed. Use harder aluminum and wood.

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