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Carmex Carbide Tiny Tool - Boring Bar - MTR - K20 Grade - 1.2mm Minimum Diameter x 9mm Reach x R0
| Application | Boring (MTR) |
| Minimum Diameter | 1.2 |
| Reach (L1) | 9 |
| Radius (R) | 0 |
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Description
The Carmex Carbide Tiny Tool is a solid carbide boring bar built for precision in tight spaces. With a 1.2 mm minimum diameter and 9 mm reach, it enables accurate boring and general turning in slim cavities, while the zero-radius tip supports crisp edges and smooth finishes.
Built from MTR K20-grade carbide, this tiny tool is offered with two PVD-coated options to match your material and cutting conditions. BXC TiN coating provides reliable performance at low cutting speeds and works well with a wide range of stainless steels (ISO P30-P50 / K25-K40). BMK delivers an ultra-smooth cut and exceptional heat resistance with a sub-micron grade and triple PVD coating (ISO K10-K20). General-purpose for all materials.
- Ultra-compact boring bar for tight bores: Access narrow cavities with a 1.2 mm minimum diameter and 9 mm reach, while maintaining rigidity and finishing quality thanks to the zero-radius tip.
- Coating options tuned for material and speed: Choose BXC TiN for low-speed stainless steel work or BMK triple-coated carbide for high-heat applications, extending tool life and improving cutting stability.
- Durable K20-grade carbide with proven geometry: Robust MTR-grade material provides stiffness and consistent performance across materials, helping reduce chatter and deliver repeatable results.
This tiny tool is designed to streamline micro-boring and tight-tolerance work. Its compact size and reliable coatings support efficient setups, fewer tool changes, and dependable finishes across stainless steels and other alloys, helping you finish jobs on time with confidence.
Part Numbers
- Protool Part Number
- MTR1.2R0L9K20
- 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.
