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uxcell 3.8mm Drilling Dia High-Speed Steel Cobalt Metric Spiral Twist Drill Bit Rotary Tool 20pcs in Kuwait uxcell 3.8mm Drilling Dia High-Speed Steel Cobalt Metric Spiral Twist Drill Bit Rotary Tool 20pcs in Kuwait uxcell 3.8mm Drilling Dia High-Speed Steel Cobalt Metric Spiral Twist Drill Bit Rotary Tool 20pcs in Kuwait uxcell 3.8mm Drilling Dia High-Speed Steel Cobalt Metric Spiral Twist Drill Bit Rotary Tool 20pcs in Kuwait uxcell 3.8mm Drilling Dia High-Speed Steel Cobalt Metric Spiral Twist Drill Bit Rotary Tool 20pcs in Kuwait

3.9mm x 75mm

KWD 4

Size3.9mm x 75mm
All electronics ship with US style plugs. You may need a voltage converter or a plug adapter.
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Special Features

  • [SIZE] - 3.8mm diameter, 70mm length twist drill bit with 3.8mm shank.
  • [MATERIAL] - Cobalt high speed steel is made by spiral technology, has both toughness and hardness, is not easy to break. The drill bit is sharp, and is easy for chip removal.
  • [APPLICABLE MACHINE] - Widely used in rotary tool such as hand drills, drill press, flex shafts, bench drill and hanging mill.
  • [APPLICATION] - Suitable for drilling small holes on glass, metal, sea shells, jade, pearls, marble, stones, drywall and son on. Due to the different hardness of the material, the effect is also different.
  • [NOTICE] - When drilling, it is necessary to add cutting fluid in time to lubricate and cool down, which can get a better drilling hole wall, extends the service life and drilling accuracy.

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