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Carmex Carbide Tiny Tool - Boring Bar - MTR - K20 Grade - 6.1mm Minimum Diameter x 15mm Reach x R0.1
| Application | Boring (MTR) |
| Minimum Diameter | 6.1 |
| Reach (L1) | 15 |
| Radius (R) | 0.1 |
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Description
The Carmex Carbide Tiny Tool - Boring Bar - MTR - K20 Grade - 6.1mm Minimum Diameter x 15mm Reach x R0.1 is a solid carbide bar designed for precision internal boring and small-diameter turning. Its compact 6.1 mm minimum diameter, 15 mm reach, and R0.1 nose radius help you access tight pockets and produce accurate holes with consistent results. Built for engineers, machinists, and hobbyists, it delivers reliable performance in a compact form factor.
- Tiny-diameter, long-reach geometry: Designed for internal bores and hard-to-reach features, this boring bar fits into tight cavities with consistent hole sizes and minimal tool deflection, thanks to its 6.1 mm diameter, 15 mm reach, and precise R0.1 nose radius.
- Coating versatility for varied materials: Choose between BXC TiN coating for low-speed cutting on stainless steels (ISO P30–P50 / K25–K40) for smoother cuts and longer life, or BMK sub-micron coating with advanced PVD triple layers for exceptional heat resistance and broad-material performance.
- Solid carbide durability for reliable life: Crafted from MTR K20-grade carbide, this tool delivers stable cutting, wear resistance, and repeatable results across demanding boring and turning tasks.
Use this tiny boring bar to simplify tight-hole work, reduce tool changes, and improve dimensional control. The rugged carbide construction and coating options help you maintain consistent results across stainless steel and other materials, boosting productivity and reducing downtime in both shop and field environments.
Part Numbers
- Protool Part Number
- MTR6R0.1L15K20
- 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.
