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Carmex Carbide Tiny Tool - Boring Bar - MTL - K20 Grade - 6.1mm Minimum Diameter x 15mm Reach x R0.1 (Left Hand)
| Application | Boring (MTL) |
| Minimum Diameter | 6.1 |
| Reach (L1) | 15 |
| Radius (R) | 0.1 |
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Description
The Carmex Carbide Tiny Tool is a compact, solid carbide boring bar designed for tight internal work and reliable general turning. Sized for precision, it features a 6.1 mm minimum diameter, 15 mm reach, and a left-hand R0.1 geometry, making it an ideal choice for finishing small bores with consistent, clean results. Built for the MTL line in K20 grade, this tool pairs size and rigidity with dependable performance in a busy workshop.
- BXC TiN-coated for reliable low-speed cutting: This grade uses a PVD TiN coating optimized for lower cutting speeds, helping reduce wear and extend tool life when machining stainless steels (ISO P30-P50 / K25-K40) while maintaining steady finishes.
- BMK sub-micron grade with triple PVD coating: Engineered for extreme heat resistance and smooth cutting, BMK delivers maximum performance across a broad material range (ISO K10-K20) with consistent, dependable results even under demanding conditions.
- Compact left-hand geometry with precise R0.1 corner: The small 6.1 mm diameter, 15 mm reach, and left-hand orientation provide reliable access to tight bores, helping achieve clean profiles and repeatable finishes in confined spaces.
Designed to enhance workflow, this carbide boring bar delivers steady performance across boring and general turning tasks. The dual coating options protect against heat and wear, while the compact geometry reduces setup time and tool changes, enabling you to finish more parts with fewer interruptions and consistently accurate bore dimensions.
Part Numbers
- Protool Part Number
- MTL6R0.1L15K20
- 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.
