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Carmex Carbide Tiny Tool - Boring Bar - MTR - K20 Grade - 1mm Minimum Diameter x 6mm Reach x R0
| Application | Boring (MTR) |
| Minimum Diameter | 1 |
| Reach (L1) | 6 |
| Radius (R) | 0 |
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Description
The Carmex Carbide Tiny Tool boring bar is a solid carbide cutting tool built for precision internal machining where small diameters matter. With a 1 mm minimum bore size and 6 mm reach, it supports both dedicated boring and general turning work on parts that demand access into tight spaces.
- High heat resistance: The sub-micron BMK carbide grade with advanced PVD triple coating maintains edge integrity during continuous cuts, reducing the need for frequent tool changes.
- Smooth cutting performance: The coating promotes stable chip flow and minimizes vibration, helping produce consistent surface finishes across different workpiece materials.
- Versatile material range: Designed as a general-purpose grade, the bar performs reliably on stainless steels and other common metals without requiring grade swaps for each job.
By combining a compact solid-carbide body with proven coating technology, this boring bar lets machinists complete small-diameter work accurately and with fewer interruptions, supporting steady production on both prototype and repeat jobs.
Part Numbers
- Protool Part Number
- MTR1R0L6K20
- 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.
