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Carmex Carbide Tiny Tool - Boring Bar - MTL - K20 Grade - 5.1mm Minimum Diameter x 30mm Reach x R0.2 (Left Hand)
| Application | Boring (MTL) |
| Minimum Diameter | 5.1 |
| Reach (L1) | 30 |
| Radius (R) | 0.2 |
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Description
The Carmex Carbide Tiny Tool is a compact, solid carbide boring bar designed for precision boring and reliable turning. With a 5.1 mm minimum diameter, 30 mm reach, and left‑hand geometry, it excels in tight pockets, grooving, and finishing passes on standard lathes.
This tool is part of Carmex’s line of solid carbide bars and is suitable for a range of materials and applications. It offers two performance-coated options: BXC TiN coated grade for low cutting speeds and excellent performance with a wide range of stainless steels (ISO P30-P50 / K25-K40); and BMK sub‑micron grade with an advanced PVD triple coating, delivering extremely high heat resistance and smooth cutting for general‑purpose use across materials (ISO K10-K20).
- Compact boring bar for tight bores: 5.1 mm minimum diameter with 30 mm reach and a precise R0.2 corner radius enable clean, accurate holes in confined spaces and finishing passes.
- Dual coating options for versatile performance: BXC TiN coating reduces friction for low-speed stainless‑steel work, while the BMK triple PVD coating provides heat resistance and smooth cutting across a broad material range.
- Left-hand geometry for reliable engagement: Designed for left‑hand cutting setups, delivering predictable chip flow and consistent edge performance in everyday turning and boring tasks.
Used in a wide range of turning and boring operations, this tool helps you achieve consistent hole quality, reduces tool changes, and supports longer life in demanding materials. Its robust carbide composition and tailored coatings translate to dependable performance, helping you finish jobs faster with fewer interruptions and better surface finishes.
Part Numbers
- Protool Part Number
- MTL5R0.2L30K20
- 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.
