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Carmex Thread Turning Internal Insert - Stub Acme - Right Hand - 27IR4STACMEBMA
| Thread Type | Internal |
| Thread Direction | Right Hand |
| Thread Form | Stub Acme |
| Pitch | 4 |
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The ones our customers buy most.Description
The Carmex Thread Turning Internal Insert – Stub Acme, Right Hand (27IR4STACMEBMA) is a compact, high‑precision tool designed for cutting internal threads in a wide range of materials. Featuring a laydown triangular geometry, this insert covers the majority of existing thread standards, enabling dependable performance from simple tasks to demanding production work.
- Broad thread standard coverage: The laydown triangular geometry and precise edges provide reliable performance across a wide range of internal thread standards, reducing tool changes and keeping your workflow efficient.
- Durable carbide construction: Built to withstand demanding materials and long service life, this insert maintains sharpness and consistent thread quality even under heavy milling and tough conditions.
- Easy setup and repeatable results: Secure seating in the holder and stable alignment promote quick setup, smooth chip flow, and repeatable, high-quality threads on every job.
This insert helps you finish internal threading with confidence: it supports faster turnaround on projects, minimizes downtime, and delivers consistent thread quality across diverse materials. By simplifying setup and delivering dependable performance, it boosts productivity and helps you meet tight tolerances without guesswork.
Part Numbers
- Protool Part Number
- 27IR4STACMEBMA
- Brand
- Carmex
- Category
- Thread Turning
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.
Full Range: Carmex Thread Turning Internal Inserts - STACME - Right/Left Hand
View full collection →You are viewing 27IR4STACMEBMA. Click any other SKU to view its full details.
| Product SKU | Thread Type | Thread Direction | Thread Form | Pitch | Insert Size | Grade | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| 16IL10STACMEBMA | Internal | Left Hand | Stub Acme | 10 | 16 | BMA | £12.06 | In Stock | |
| 16IL12STACMEBMA | Internal | Left Hand | Stub Acme | 12 | 16 | BMA | £12.06 | 5 days | |
| 16IL14STACMEBMA | Internal | Left Hand | Stub Acme | 14 | 16 | BMA | £9.25 | 5 days | |
| 16IL16STACMEBMA | Internal | Left Hand | Stub Acme | 16 | 16 | BMA | £9.25 | 5 days | |
| 16IL6STACMEBMA | Internal | Left Hand | Stub Acme | 6 | 16 | BMA | £12.06 | In Stock | |
| 16IL8STACMEBMA | Internal | Left Hand | Stub Acme | 8 | 16 | BMA | £12.06 | In Stock | |
| 16IR10STACMEBMA | Internal | Right Hand | Stub Acme | 10 | 16 | BMA | £12.06 | In Stock | |
| 16IR12STACMEBMA | Internal | Right Hand | Stub Acme | 12 | 16 | BMA | £12.06 | In Stock | |
| 16IR14STACMEBMA | Internal | Right Hand | Stub Acme | 14 | 16 | BMA | £12.06 | In Stock | |
| 16IR16STACMEBMA | Internal | Right Hand | Stub Acme | 16 | 16 | BMA | £12.06 | 5 days | |
| 16IR8STACMEBMA | Internal | Right Hand | Stub Acme | 8 | 16 | BMA | £12.06 | 5 days | |
| 22IL4STACMEBMA | Internal | Left Hand | Stub Acme | 4 | 22 | BMA | £13.66 | 5 days | |
| 22IL5STACMEBMA | Internal | Left Hand | Stub Acme | 5 | 22 | BMA | £13.66 | In Stock | |
| 22IR4STACMEBMA | Internal | Right Hand | Stub Acme | 4 | 22 | BMA | £17.78 | 5 days | |
| 22IR5STACMEBMA | Internal | Right Hand | Stub Acme | 5 | 22 | BMA | £17.78 | In Stock | |
| 27IL3STACMEBMA | Internal | Left Hand | Stub Acme | 3 | 27 | BMA | £19.37 | In Stock | |
| 27IL4STACMEBMA | Internal | Left Hand | Stub Acme | 4 | 27 | BMA | £19.37 | In Stock | |
| 27IR3STACMEBMA | Internal | Right Hand | Stub Acme | 3 | 27 | BMA | £19.37 | 5 days | |
| 27IR4STACMEBMA Viewing | Internal | Right Hand | Stub Acme | 4 | 27 | BMA | £25.22 | 5 days |
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