sourcing map 2pcs Twist Drill Bit 12mm Dia 300mm (11.81") Extra Long High-Speed Steel Spiral Jobber Drill Bits Fully Ground Drilling Tools for Wood Plastic Aluminum Thin Metal Sheet

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Product description

  • Applications - Extra long twist drill bits are widely used for effectively drilling wood, plastic, gypsum board, aluminum, copper, PVC, and thin iron sheet. With good cutting performance, it can ensure high working efficiency. Straight shank drill bit is suitable for electric drills, bench drills, drilling machines, hand drills, machining centers, and CNC lathes, and will not slip when fixed.
  • Material - Twist drill bits are made of high-speed steel, which has high hardness, high wear resistance, excellent heat resistance and good bending strength. The drill bits with polished surface are easy to maintain and repair, suitable for various applications, with long tool life and faster cutting speed.
  • Notes - Because the hand drill speed is too fast, please pay attention to the speed adjustment when drilling, recommended speed 100-1000 RPM MIN. Use the appropriate cutting fluid or lubricant to reduce friction and extend drill life. Higher speeds may be suitable for softer materials, while slower speeds are recommended for tougher materials.

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