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Carmex Carbide Tiny Tool - Full Radius Grooving - MKL - K20 Grade - 5.1mm Minimum Diameter x 2mm Groove Width - 15mm Reach (Left Hand)
| Application | Full Radius Grooving (MKL) |
| Minimum Diameter | 5.1 |
| Groove Width (W) | 2 |
| Groove Depth (H) | 1.2 |
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Description
The Carmex Carbide Tiny Tool is a precision solid carbide bar designed for full-radius grooving and general turning. Built for tight work envelopes, it suits engineers, machinists, and hobbyists who need repeatable grooves in stainless steels and a broad range of materials. Key specifications include a 5.1 mm minimum diameter, a 2 mm groove width, and a 15 mm reach in a left-hand configuration.
- Two coating grades for tailored performance: BXC TiN-coated grade is optimized for low cutting speeds and broad stainless-steel compatibility (ISO P30-P50 / K25-K40), while BMK is a sub-micron grade with triple PVD coating for extremely high heat resistance and smooth cutting (ISO K10-K20).
- Full-radius grooving in a compact carbide bar: Precisely shaped for full-radius grooves with a 5.1 mm minimum diameter and 2 mm groove width, plus a 15 mm left-hand reach to access tight features.
- General-purpose versatility for turning and more: In addition to grooving, the BMK option provides reliable performance for general turning tasks across a wide range of materials.
This tool delivers dependable, repeatable results by combining a robust carbide substrate with purpose-built coatings. The dual-grade options let you tailor performance to your material and speed, while the compact geometry simplifies setup and reduces downtime in small-part production. Whether you’re producing precise grooves or handling routine turning jobs, the Carmex Tiny Tool is designed to help you finish parts to spec with consistent finish quality.
Part Numbers
- Protool Part Number
- MKL5R1.0L15K20
- 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 K20 (MKR)
View full collection →You are viewing MKL5R1.0L15K20. Click any other SKU to view its full details.
| Product SKU | Minimum Diameter | Groove Width | Groove Depth | Reach | Grade | Holder | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| MKR5R0.5L15K20 | 5.1 | 1 | 1.2 | 15 | K20 | SIM****H5 | £23.65 | 5 days | |
| MKR6R0.5L15K20 | 6.1 | 1 | 1.6 | 15 | K20 | SIM****H6 | £24.20 | 5 days | |
| MKR7R0.75L22K20 | 7.1 | 1.5 | 2.5 | 22 | K20 | SIM****H7 | £24.00 | 5 days | |
| MKR5R0.75L15K20 | 5.1 | 1.5 | 1.2 | 15 | K20 | SIM****H5 | £23.65 | 5 days | |
| MKR6R1.0L15K20 | 6.1 | 2 | 1.8 | 15 | K20 | SIM****H6 | £24.20 | 5 days | |
| MKR6R0.75L15K20 | 6.1 | 1.5 | 1.6 | 15 | K20 | SIM****H6 | £24.20 | 5 days | |
| MKR4R0.5L10K20 | 4.1 | 1 | 1 | 10 | K20 | SIM****H4 | £23.18 | 5 days | |
| MKR5R1.0L15K20 | 5.1 | 2 | 1.2 | 15 | K20 | SIM****H5 | £23.65 | 5 days | |
| MKR7R1.0L22K20 | 7.1 | 2 | 2.5 | 22 | K20 | SIM****H7 | £28.43 | 5 days | |
| MKR4R0.75L10K20 | 4.1 | 1.5 | 1 | 10 | K20 | SIM****H4 | £23.18 | 5 days | |
| MKR7R0.5L22K20 | 7.1 | 1 | 2.5 | 22 | K20 | SIM****H7 | £24.00 | 5 days | |
| MKL4R0.5L10K20 | 4.1 | 1 | 1 | 10 | K20 | SIM****H4 | £23.18 | 5 days | |
| MKL4R0.75L10K20 | 4.1 | 1.5 | 1 | 10 | K20 | SIM****H4 | £23.18 | 5 days | |
| MKL5R0.5L15K20 | 5.1 | 1 | 1.2 | 15 | K20 | SIM****H5 | £23.65 | 5 days | |
| MKL5R0.75L15K20 | 5.1 | 1.5 | 1.2 | 15 | K20 | SIM****H5 | £23.65 | 5 days | |
| MKL5R1.0L15K20 Viewing | 5.1 | 2 | 1.2 | 15 | K20 | SIM****H5 | £23.65 | 5 days | |
| MKL6R0.5L15K20 | 6.1 | 1 | 1.6 | 15 | K20 | SIM****H6 | £24.20 | 5 days | |
| MKL6R0.75L15K20 | 6.1 | 1.5 | 1.6 | 15 | K20 | SIM****H6 | £23.18 | 5 days | |
| MKL6R1.0L15K20 | 6.1 | 2 | 1.8 | 15 | K20 | SIM****H6 | £24.20 | 5 days | |
| MKL7R0.5L22K20 | 7.1 | 1 | 2.5 | 22 | K20 | SIM****H7 | £23.98 | 5 days | |
| MKL7R0.75L22K20 | 7.1 | 1.5 | 2.5 | 22 | K20 | SIM****H7 | £23.98 | 5 days | |
| MKL7R1.0L22K20 | 7.1 | 2 | 2.5 | 22 | K20 | SIM****H7 | £23.98 | 5 days |
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