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21/64 (.3281) Extension Drill Bit HSS 6 Long

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21/64 (.3281) Extension Drill Bit HSS 6 Long

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Part numbers : RX1-12-04281 , 4010-3281 , 12-04281
Unit of Measure: EA

15.52 EUR / EA 15.52 EUR 15.52 € excl. VAT

15.52 EUR / EA excl. VAT

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The 4010-3281 extension drill bit is a high-speed steel (HSS) drill with a nominal 21/64 in diameter (8.33 mm) and an overall length of 152 mm. Its extended format supports drilling operations where access is restricted.

Manufactured to NAS 965 Type B construction, this drill features a Type B threaded hex shank with a 1/4-28 UNF Class 2A thread and a steam-oxide surface treatment. HSS construction is intended for general- to medium-duty drilling in low-tensile-strength materials.

  • Manufacturer part number: 4010-3281
  • Nominal drill diameter: 8.33 mm (21/64 in; 0.3281 in)
  • Overall length: 152 mm
  • Material: high-speed steel
  • Shank: Type B threaded hex shank
  • Thread: 1/4-28 UNF Class 2A
  • Construction: NAS 965 Type B
  • Surface treatment: steam oxide
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