Please log in here to access all benefits, including promotional discounts and faster checkouts.

OSG Threading Tap - UNF Spiral Flute HSS-E - Steam Oxide Coated - Blind Hole - 1.1/4 x 12

OSG Threading Tap - BSW Spiral Flute HSS-E - Steam Oxide Coated - Blind Hole - 7/32 x 24

SKU:OSG-22207054

The OSG BSW Spiral Flute Threading Tap is a precision tool built for machinists who require clean, accurate internal threads in blind holes. With its HSS‑E cobalt composition and steam oxide coati... Read more ↓
P
M
FormBSW
Size7/32
Pitch24
Flute Length17
View all specifications ↓
Download Cutting Data
£38.67
Prices shown ex. VAT
1–2 days estimated lead time — subject to availability
View Other Sizes →
Free delivery over £50 ex VAT
Secure checkout
14-day returns
30+ years expertise
Klarna
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
Learn more about Klarna
Speak to our team
01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

The OSG BSW Spiral Flute Threading Tap is a precision tool built for machinists who require clean, accurate internal threads in blind holes. With its HSS‑E cobalt composition and steam oxide coating, it delivers dependable performance under demanding cutting conditions.

  • Size and Thread: 7/32" diameter, 24 TPI, British Standard Whitworth (BSW) thread
  • Flute Design: Spiral flute for efficient chip evacuation in blind-hole applications
  • Material: HSS‑E (high‑speed steel with cobalt) for enhanced hardness and wear resistance
  • Coating: Steam oxide coating provides improved wear resistance and lubrication retention
  • Application: Optimized for threading inside blind holes with dependable thread form
  • Brand Advantage: Utilizes OSG’s advanced threading technology for consistent, high‑quality results
  • Usage Note: Compatible with standard tapping setups and practices; use appropriate cutting fluid for best longevity

The combination of spiral flutes, cobalt-enhanced steel, and a durable steam‑oxide finish translates to longer tool life, steadier cutting action, and clearer thread formation in challenging blind-hole work. You’ll experience smoother chip clearance, reduced risk of binding, and reliable, repeatable threads that meet tight tolerances in critical components such as housings, brackets, and fixtures. This tap is ideal for shops and job sites that prioritize precision, durability, and efficient metalworking workflows.

Part Numbers

Protool Part Number
OSG-22207054
Brand
OSG
Category
Threading Tap
Delivery

Free UK mainland delivery on orders over £50 ex VAT. In-stock items ordered before 4:30pm are dispatched the same working day. Full delivery information.

Returns

14-day returns on unused stock items in original packaging. Special-order and bespoke tooling is non-returnable. Read our returns policy.

Technical Support

Over 30 years of machining experience behind the counter. Call 01732 887334, Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

Trade Accounts

Credit accounts, contract pricing and scheduled call-off orders available for trade customers. Apply for an account.

What time are Protool open?

We are open Monday to Friday between 8:30am and 5pm.

Do you offer Free Next Day delivery?

Yes! We offer Free Next Day delivery via Royal Mail Tracked 24 on all orders over £50 ex VAT*. We also offer Free DPD Local Next Day delivery on all orders over £100 ex VAT*.

We also offer the following:

  • Royal Mail Tracked 24 — £5.90 (FREE on orders over £50 ex VAT*). Order before 4:30pm for next day delivery. No signature required.
  • DPD Local Next Day — £8.00 (FREE on orders over £100 ex VAT*). Standard next day delivery to UK mainland addresses.
  • Royal Mail Special Delivery — £12.50. Guaranteed delivery before 1pm the next working day.
  • DPD Saturday Delivery — £25.00. Must be ordered on Friday before 4pm. Pre-12pm delivery.

For delivery to Scottish Highlands & Islands, Northern Ireland, Republic of Ireland, or overseas locations, additional charges apply. Please see our delivery page for full details, or call us on 01732 887 334.

*T's & C's and exclusions apply. Please see our delivery page for more information on all our services.

Ask our technical team about this tool

Not sure if this is the right tool for your job? Ask us about speeds and feeds, material suitability, holders or alternatives — 30+ years of machining experience on the other end.

Prefer to talk? Call 01732 887334 — Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

Full Range: OSG Threading Taps - BSW Spiral Flute HSS-E - Steam Oxide Coated - Blind Hole

View full collection →

You are viewing OSG-22207054. Click any other SKU to view its full details.

Product SKUSizePitchFlute LengthShank DiameterOverall LengthPriceStock Order
OSG-22207024 1/840113.1548£46.05 1-2 days
OSG-22207034 5/323213453£55.62 1-2 days
OSG-22207044 3/162416558£27.80 In Stock
OSG-22207054 Viewing7/3224175.662£38.67 1-2 days
OSG-22207064 1/420196.366£24.23 In Stock
OSG-22207544 9/322022872£53.01 1-2 days
OSG-22207074 5/1618241080£26.94 In Stock
OSG-22207084 3/81625885£33.18 In Stock
OSG-22207094 7/161429989£46.91 In Stock
OSG-22207104 1/2123011.295£47.36 In Stock
OSG-22207114 9/16123212.5102£62.59 1-2 days
OSG-22207124 5/8113714112£71.26 In Stock
OSG-22207134 3/4103714112£106.89 In Stock
OSG-22207144 7/893816118£147.77 In Stock
OSG-22207154 184518130£175.57 1-2 days
OSG-22207164 1.1/873720127£305.92 1-2 days
OSG-22207174 1.1/473722137£389.36 In Stock

Other sizes in this range

with tools we think you'll like
All 17 →