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Carmex Carbide Tiny Tool - Full Radius Grooving - MKR - BMK Grade - 4.1mm Minimum Diameter x 1.5mm Groove Width - 10mm Reach
| Application | Full Radius Grooving (MKR) |
| Minimum Diameter | 4.1 |
| Groove Width (W) | 1.5 |
| Groove Depth (H) | 1 |
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Description
The Carmex Carbide Tiny Tool is a compact, solid carbide tool designed specifically for full-radius grooving in tight spaces. With a 4.1 mm minimum diameter and a 1.5 mm groove width, paired with a 10 mm reach, it delivers precise radii and reliable performance in confined pockets and during delicate turning operations.
Built around BMK-grade carbide and reinforced by advanced PVD coating, this tool offers excellent heat resistance and smooth cutting action. It’s optimized for high-performance grooving across a broad range of materials, while also serving as a capable general-turning option when needed.
- Full-radius grooving precision: Engineered for tight pockets, it delivers accurate full-radius grooves with a 4.1 mm minimum diameter and 1.5 mm groove width, all reachable within a 10 mm length.
- BMK-grade carbide with advanced PVD coating: Sub-micron BMK material plus triple coating provides exceptional heat resistance and smooth cutting, helping extend tool life and maintain consistent finishes.
- Versatile general-purpose performance: Beyond grooving, it excels as a general turning tool across materials, reducing tool changes and expanding capability in a single, reliable insert.
This tool is designed to improve workflow by delivering dependable, repeatable results in both grooving and turning applications. Its precise geometry and durable coating help you achieve cleaner cuts, tighter tolerances, and longer cutting life, making it a dependable choice for professionals and hobbyists alike.
Part Numbers
- Protool Part Number
- MKR4R0.75L10BMK
- Brand
- Carmex
- Category
- Tiny Tool Inserts
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 Carbide Tiny Tools - Full Radius Grooving - Grade BMK (MKR)
View full collection →You are viewing MKR4R0.75L10BMK. Click any other SKU to view its full details.
| Product SKU | Minimum Diameter | Groove Width | Groove Depth | Reach | Grade | Holder | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| MKR4R0.5L10BMK | 4.1 | 1 | 1 | 10 | BMK | SIM****H4 | £26.93 | 5 days | |
| MKR4R0.75L10BMK Viewing | 4.1 | 1.5 | 1 | 10 | BMK | SIM****H4 | £26.93 | 5 days | |
| MKR5R0.5L15BMK | 5.1 | 1 | 1.2 | 15 | BMK | SIM****H5 | £27.35 | 5 days | |
| MKR5R0.75L15BMK | 5.1 | 1.5 | 1.2 | 15 | BMK | SIM****H5 | £27.35 | 5 days | |
| MKR5R1.0L15BMK | 5.1 | 2 | 1.2 | 15 | BMK | SIM****H5 | £27.35 | 5 days | |
| MKR6R0.5L15BMK | 6.1 | 1 | 1.6 | 15 | BMK | SIM****H6 | £28.00 | 5 days | |
| MKR6R0.75L15BMK | 6.1 | 1.5 | 1.6 | 15 | BMK | SIM****H6 | £28.00 | In Stock | |
| MKR6R1.0L15BMK | 6.1 | 2 | 1.8 | 15 | BMK | SIM****H6 | £28.00 | In Stock | |
| MKR7R0.5L22BMK | 7.1 | 1 | 2.5 | 22 | BMK | SIM****H7 | £32.85 | 5 days | |
| MKR7R0.75L22BMK | 7.1 | 1.5 | 2.5 | 22 | BMK | SIM****H7 | £32.85 | 5 days | |
| MKR7R1.0L22BMK | 7.1 | 2 | 2.5 | 22 | BMK | SIM****H7 | £32.85 | 5 days | |
| MKL4R0.5L10BMK | 4.1 | 1 | 1 | 10 | BMK | SIM****H4 | £26.93 | 5 days | |
| MKL4R0.75L10BMK | 4.1 | 1.5 | 1 | 10 | BMK | SIM****H4 | £26.93 | 5 days | |
| MKL5R0.5L15BMK | 5.1 | 1 | 1.2 | 15 | BMK | SIM****H5 | £27.35 | 5 days | |
| MKL5R0.75L15BMK | 5.1 | 1.5 | 1.2 | 15 | BMK | SIM****H5 | £27.35 | 5 days | |
| MKL5R1.0L15BMK | 5.1 | 2 | 1.2 | 15 | BMK | SIM****H5 | £27.35 | 5 days | |
| MKL6R0.5L15BMK | 6.1 | 1 | 1.6 | 15 | BMK | SIM****H6 | £28.00 | 5 days | |
| MKL6R0.75L15BMK | 6.1 | 1.5 | 1.6 | 15 | BMK | SIM****H6 | £26.93 | 5 days | |
| MKL6R1.0L15BMK | 6.1 | 2 | 1.8 | 15 | BMK | SIM****H6 | £28.00 | 5 days | |
| MKL7R0.5L22BMK | 7.1 | 1 | 2.5 | 22 | BMK | SIM****H7 | £32.85 | 5 days | |
| MKL7R0.75L22BMK | 7.1 | 1.5 | 2.5 | 22 | BMK | SIM****H7 | £27.78 | 5 days | |
| MKL7R1.0L22BMK | 7.1 | 2 | 2.5 | 22 | BMK | SIM****H7 | £32.85 | 5 days |
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