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#21 (.159) 1/4-28 Threaded Drill Bit Cobalt 1-1/4 Long

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#21 (.159) 1/4-28 Threaded Drill Bit Cobalt 1-1/4 Long

https://www.roctexo.com/web/image/product.template/66015/image_1920?unique=7718645
Part numbers : RX1-12-04028 , 21COSH , 12-04028
Unit of Measure: EA

4.39 EUR / EA 4.39 EUR 4.39 € excl. VAT

4.39 EUR / EA excl. VAT

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Availability
Up to 11 EA ready to ship on Monday 2026-09-28
Order before 17:00 CET on Friday 2026-09-25
Up to 22 EA ready to ship on Thursday 2026-10-01
Order before 17:00 CET on Friday 2026-09-25
13 EA available on request, fees apply
Special order from vendor stock.

Threaded cobalt drill bit for use with compatible 1/4-28 threaded drill adapters. This No. 21 drill has a 0.159 in diameter (approximately 4.0 mm) and an overall length of approximately 32 mm.

  • Manufacturer part number: 21COSH
  • Roctexo part number: RX1-12-04028
  • Drill size: No. 21, 0.159 in (approximately 4.0 mm)
  • Cobalt construction for drilling hard, tough and high-tensile-strength materials
  • Type D threaded square shank
  • 1/4-28 UNF Class 2A male thread
  • Steam-oxide surface treatment
  • Manufactured to NAS 965 Type D construction

Suitable for drilling work in confined areas where a threaded drill adapter system is used. Supplied as one piece.

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