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11IR48WK20 - Carmex Thread Turning Internal Insert - W (BSW BSF BSP BSB) - Right Hand
| Thread Type | Internal |
| Thread Direction | Right Hand |
| Thread Form | W (BSW BSF BSP BSB) |
| Pitch | 48 |
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Carmex Thread Turning Internal Insert — W (BSW BSF BSP BSB), Right Hand, 11IR48WK20 is a compact, high-precision tool insert designed for internal threading. As part of Carmex’s globally recognized range, it covers a broad spectrum of common thread standards, helping you complete most internal thread jobs with a single insert.
These laydown triangular inserts are built for a wide range of applications—from basic repairs to more demanding production work. The geometric design supports stable cutting action, efficient chip control, and clean, consistent thread surfaces across different materials.
- Wide thread-standard compatibility: Designed to handle BSW, BSF, BSP, and BSB internal thread standards, reducing the need to stock multiple inserts and speeding up setup.
- Stable, laydown triangular geometry: Triangular shape provides reliable support and smooth cutting for consistent thread quality and reduced tool deflection.
- Right-hand orientation for predictable performance: Specifically configured for right-hand threading, ensuring reliable engagement and easy integration with standard machines and tooling.
This insert helps streamline workflows, lowers downtime from tool changes, and delivers dependable, repeatable internal threads across a range of materials and applications—supporting better part quality and faster job completion.
Part Numbers
- Protool Part Number
- 11IR48WK20
- 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.



