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

Carmex Carbide Tiny Tool - Full Radius Grooving - MKR - BXC Grade - 5.1mm Minimum Diameter x 1mm Groove Width - 15mm Reach
| Application | Full Radius Grooving (MKR) |
| Minimum Diameter | 5.1 |
| Groove Width (W) | 1 |
| Groove Depth (H) | 1.2 |
| Reach (L1) | 15 |
| L | 51 |
Learn more about Klarna
The Carmex Carbide Tiny Tool is a compact solid carbide grooving tool designed for precision, full-radius grooves on small-diameter workpieces. With a minimum diameter of 5.1 mm, a 1 mm groove width, and a 15 mm reach, it’s ideal for tight turning applications where accuracy and edge quality matter. It also serves as a versatile general turning tool when grooves aren’t required.
Available in two advanced carbide grades, this tiny tool is built to handle demanding materials. The BXC grade uses a PVD TiN coating optimized for low cutting speeds and stainless steels (ISO P30-P50 / K25-K40). The BMK grade combines a sub-micron base with a triple PVD coating (ISO K10-K20), delivering exceptional heat resistance and smooth cutting across a wide material range.
- Small-diameter full-radius grooving with long reach: 5.1 mm minimum diameter, 1 mm groove width, and 15 mm reach enable precise grooves on tight, hard-to-reach features without compromising edge quality.
- Two advanced carbide grades for diverse materials: BXC provides reliable performance at low speeds on stainless steels, while BMK offers high heat resistance and smooth cutting across a broad material set.
- Coating technology for reliable performance: PVD coatings reduce wear and maintain edge life, delivering consistent results across production runs.
By choosing the Carmex Tiny Tool, you gain precise control over small-radius grooves while maintaining tool life and versatility. The dual-grade options let you tailor performance to stainless steels or broader material ranges, helping optimize cutting conditions, reduce downtime, and achieve repeatable, high-quality finishes in turning and grooving tasks.
| Application | Full Radius Grooving (MKR) |
| Minimum Diameter | 5.1 |
| Groove Width (W) | 1 |
| Groove Depth (H) | 1.2 |
| Reach (L1) | 15 |
| L | 51 |
| R | 0.50 |
| F | 2.3 |
| D | 5.0 |
| Grade | BXC |
| Holder | SIM****H5 |
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 Carbide Tiny Tools - Full Radius Grooving - Grade BXC (MKR)
View full collection →You are viewing MKR5R0.5L15BXC. Click any other SKU to view its full details.
| Product SKU | Minimum Diameter | Groove Width | Groove Depth | Reach | Grade | Holder | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| MKR4R0.5L10BXC | 4.1 | 1 | 1 | 10 | BXC | SIM****H4 | £24.43 | 5 days | |
| MKR4R0.75L10BXC | 4.1 | 1.5 | 1 | 10 | BXC | SIM****H4 | £24.43 | In Stock | |
| MKR5R0.5L15BXC Viewing | 5.1 | 1 | 1.2 | 15 | BXC | SIM****H5 | £24.93 | 5 days | |
| MKR5R0.75L15BXC | 5.1 | 1.5 | 1.2 | 15 | BXC | SIM****H5 | £24.93 | In Stock | |
| MKR5R1.0L15BXC | 5.1 | 2 | 1.2 | 15 | BXC | SIM****H5 | £24.93 | 5 days | |
| MKR6R0.5L15BXC | 6.1 | 1 | 1.6 | 15 | BXC | SIM****H6 | £25.48 | In Stock | |
| MKR6R0.75L15BXC | 6.1 | 1.5 | 1.6 | 15 | BXC | SIM****H6 | £25.48 | In Stock | |
| MKR6R1.0L15BXC | 6.1 | 2 | 1.8 | 15 | BXC | SIM****H6 | £25.48 | In Stock | |
| MKR7R0.5L22BXC | 7.1 | 1 | 2.5 | 22 | BXC | SIM****H7 | £29.88 | 5 days | |
| MKR7R0.75L22BXC | 7.1 | 1.5 | 2.5 | 22 | BXC | SIM****H7 | £29.88 | 5 days | |
| MKR7R1.0L22BXC | 7.1 | 2 | 2.5 | 22 | BXC | SIM****H7 | £29.88 | 5 days | |
| MKR6R0.3L10BXC | 6.1 | 0.6 | 1.2 | 10 | BXC | SIM****H6 | £29.28 | 5 days | |
| MKR7R0.5L30BXC | 7.1 | 1 | 2.5 | 30 | BXC | SIM****H7 | £32.85 | In Stock | |
| MKL4R0.5L10BXC | 4.1 | 1 | 1 | 10 | BXC | SIM****H4 | £24.43 | 5 days | |
| MKL4R0.75L10BXC | 4.1 | 1.5 | 1 | 10 | BXC | SIM****H4 | £24.43 | 5 days | |
| MKL5R0.5L15BXC | 5.1 | 1 | 1.2 | 15 | BXC | SIM****H5 | £24.93 | 5 days | |
| MKL5R0.75L15BXC | 5.1 | 1.5 | 1.2 | 15 | BXC | SIM****H5 | £24.93 | 5 days | |
| MKL5R1.0L15BXC | 5.1 | 2 | 1.2 | 15 | BXC | SIM****H5 | £24.93 | 5 days | |
| MKL6R0.3L10BXC | 6.1 | 0.6 | 1.2 | 10 | BXC | SIM****H6 | £24.75 | 5 days | |
| MKL6R0.5L15BXC | 6.1 | 1 | 1.6 | 15 | BXC | SIM****H6 | £25.48 | 5 days | |
| MKL6R0.75L15BXC | 6.1 | 1.5 | 1.6 | 15 | BXC | SIM****H6 | £24.43 | 5 days | |
| MKL6R1.0L15BXC | 6.1 | 2 | 1.8 | 15 | BXC | SIM****H6 | £25.48 | In Stock | |
| MKL7R0.5L22BXC | 7.1 | 1 | 2.5 | 22 | BXC | SIM****H7 | £29.88 | 5 days | |
| MKL7R0.5L30BXC | 7.1 | 1 | 2.5 | 30 | BXC | SIM****H7 | £27.78 | 5 days | |
| MKL7R0.75L22BXC | 7.1 | 1.5 | 2.5 | 22 | BXC | SIM****H7 | £29.88 | 5 days | |
| MKL7R1.0L22BXC | 7.1 | 2 | 2.5 | 22 | BXC | SIM****H7 | £29.88 | 5 days |
No products match your filters.



