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Carmex Carbide Tiny Tool - Boring Bar - MTR - K20 Grade - 8.1mm Minimum Diameter x 15mm Reach x R0.2
| Application | Boring (MTR) |
| Minimum Diameter | 8.1 |
| Reach (L1) | 15 |
| Radius (R) | 0.2 |
| Grade | K20 |
| Holder | SIM****H8 |
Learn more about Klarna
The Carmex Carbide Tiny Tool is a compact solid carbide boring bar designed for precise small-diameter work and versatile turning tasks. With an 8.1 mm minimum diameter, 15 mm reach, and a nose radius of R0.2, this tool delivers accurate holes and smooth finishes in tight spaces. Built on a rigid MTR K20-grade carbide core, it’s engineered for dependable performance in everyday machining conditions.
- Compact, bore-optimized geometry: Delivers precise, clean holes in tight bores thanks to the small diameter, 15 mm reach, and R0.2 nose radius, enabling tight tolerances and reliable finishes in constrained workpieces.
- Two coating options for versatile material compatibility: Choose BXC with PVD TiN for reliable cutting at low speeds on stainless steels, or BMK with sub-micron, triple coating for excellent heat resistance and smooth cutting across a wide range of materials.
- Solid carbide durability for long tool life: A robust carbide core provides wear resistance and steady performance in demanding boring and turning tasks, reducing downtime and rework.
This tiny tool is designed to simplify your workflow: it handles boring and general turning with confidence, adapts to different materials through specialized coatings, and maintains consistent results across jobs. Use it to reduce tool changes, improve hole quality, and keep your projects on schedule with predictable, repeatable performance.
| Application | Boring (MTR) |
| Minimum Diameter | 8.1 |
| Reach (L1) | 15 |
| Radius (R) | 0.2 |
| Grade | K20 |
| Holder | SIM****H8 |
| L | 64 |
| F | 3.8 |
| D | 8 |
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.
