ROCTEXOAEROSPACE
A commercial account is required before proceeding to checkout. Select a commercial account or create a commercial account.
You are using our new webshop. The old webshop is still available.
RX1-12-03966

Image for illustration only. It may show a product series rather than the exact product offered.

RX1-12-03966

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

4.58 EUR/EA

Excluding VAT

Availability

Up to 19 EA ready to ship on Thursday 2026-11-12Order before 16:00 CET Today
Up to 20 EA ready to ship on Monday 2026-11-16Order before 16:00 CET Today
5 EA available on request, inbound freight fee of 60 EUR appliesSpecial order from vendor stock.

Part numbers

Roctexo
RX1-12-03966
Manufacturer
#21HSSH
Vendor
12-03966

Product details

High-speed-steel threaded drill bit for use with compatible 1/4-28 UNF threaded drilling adaptors. This #21 drill has a nominal diameter of 0.159 in (4.04 mm) and an overall length of approximately 32 mm.

  • Roctexo part number: RX1-12-03966
  • Manufacturer part number: #21HSSH
  • Drill size: #21, 0.159 in (4.04 mm)
  • Material: high-speed steel (HSS)
  • Thread: 1/4-28 UNF, Class 2A male thread
  • Construction: NAS 965 Type B
  • Surface treatment: steam oxide
  • Overall length: 1-1/4 in (approximately 32 mm)

Suitable for general to medium-duty drilling of low-tensile-strength materials where access is limited.