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Carmex Carbide Tiny Tool - Boring Bar - MTR - K20 Grade - 1mm Minimum Diameter x 6mm Reach x R0
| Application | Boring (MTR) |
| Minimum Diameter | 1 |
| Reach (L1) | 6 |
| Radius (R) | 0 |
| Grade | K20 |
| Holder | SIM****H3 |
Learn more about Klarna
The Carmex Carbide Tiny Tool boring bar is a solid carbide cutting tool built for precision internal machining where small diameters matter. With a 1 mm minimum bore size and 6 mm reach, it supports both dedicated boring and general turning work on parts that demand access into tight spaces.
- High heat resistance: The sub-micron BMK carbide grade with advanced PVD triple coating maintains edge integrity during continuous cuts, reducing the need for frequent tool changes.
- Smooth cutting performance: The coating promotes stable chip flow and minimizes vibration, helping produce consistent surface finishes across different workpiece materials.
- Versatile material range: Designed as a general-purpose grade, the bar performs reliably on stainless steels and other common metals without requiring grade swaps for each job.
By combining a compact solid-carbide body with proven coating technology, this boring bar lets machinists complete small-diameter work accurately and with fewer interruptions, supporting steady production on both prototype and repeat jobs.
| Application | Boring (MTR) |
| Minimum Diameter | 1 |
| Reach (L1) | 6 |
| Radius (R) | 0 |
| Grade | K20 |
| Holder | SIM****H3 |
| L | 39 |
| F | 0.5 |
| D | 3 |
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.
