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Carmex Carbide Tiny Tool - Boring Bar - MTL - K20 Grade - 2.5mm Minimum Diameter x 10mm Reach x R0 (Left Hand)
| Application | Boring (MTL) |
| Minimum Diameter | 2.5 |
| Reach (L1) | 10 |
| Radius (R) | 0 |
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Description
The Carmex Carbide Tiny Tool is a compact, solid carbide boring bar designed for precision in tight spaces. Ideal for engineers, machinists, tradespeople, and hobbyists, it handles small-diameter boring and general turning with reliable, consistent performance. Crafted from K20-grade carbide, it delivers stiffness and long tool life for demanding, repetitive tasks.
With a 2.5 mm minimum diameter, 10 mm reach, and left-hand R0 nose, this tiny tool fits into narrow bores and recesses where space is limited. Choose from coating options designed to suit different materials and cutting speeds: BXC TiN coated grade optimized for low cutting speeds and stainless steels (ISO P30-P50 / K25-K40); or BMK sub-micron grade with an advanced PVD triple coating for exceptional heat resistance and smooth cutting across a wide range of materials.
- Ultra-compact boring capability: 2.5 mm minimum diameter, 10 mm reach, and left‑hand R0 nose enable precise holes in tight spaces with minimal tool deflection.
- Coating versatility for material range: BXC TiN coating suits low-speed cutting on stainless steels (ISO P30-P50 / K25-K40); BMK triple PVD coating delivers high heat resistance for smooth cutting across many materials.
- Durable carbide core for reliability: K20-grade solid carbide provides stiffness and wear resistance for long tool life and consistent finishes.
This tiny boring bar is designed to streamline your workflow: reach deep into confined features, maintain tight tolerances, and reduce tool changes thanks to its durable carbide construction and optimized coatings. Whether you’re benchmarking precision parts or performing routine maintenance machining, it helps you deliver clean, accurate results with fewer passes and less downtime.
Part Numbers
- Protool Part Number
- MTL2.5R0L10K20
- 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.
