sourcing map Combination Drill and Tap Bit Set, M3 M4 M5 M6 M8 M10 Metric 1/4" Hex Shank High Speed Steel 4341 Spiral Flute Drilling Tapping Tool 6pcs

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Product description

  • Combination Drill and Tap Bit Thread size M3 x 0.5, M4 x 0.7, M5 x 0.8, M6 x 1, M8 x 1.25, M10 x 1.5; hex shank size 1 4". Combination drill and tap bit set can complete hole drilling, tapping, deburring and countersinking. One-step operation greatly saves processing steps and improves working efficiency.
  • Wide Applications Suitable for processing blind holes. Used for tapping aluminum, die steel, stainless steel, bronze, hard plastics, etc.. Recommended feed rate general steel 6-15m min; harder steel 5-10m min; stainless steel 2-7m min; cast iron 8-10m min.
  • Features Self-centering point, do not need assistant center drilling or center punching. Quick change 1 4-inch hex shank can be used on power tools more easily and securely. A tapered end on hex shank can prevent excessive tapping.
  • Coating Features just the base substrate without any coatings, good for most general purpose thread tapping. High speed steel tool has high hardness and toughness, wear resistance and heat resistance.
  • Tips Use on drilling machines, tapping machines, CNC and milling machines. Use with tapping oil to get higher quality threads and more durable taps. Machine taps are suggested to be used with tap collets with overload protection.

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