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Carmex Carbide Tiny Tool - Face Grooving - MFL - Grade K20 - 8mm Minimum Diameter x 3mm Groove Width
| Application | Face Grooving (MFL) |
| Minimum Diameter | 8 |
| Groove Width (B) | 3 |
| Groove Depth (T) | 6 |
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Description
The Carmex Carbide Tiny Tool for Face Grooving is a solid carbide bar from the Tiny Tools family, engineered for precise face grooving. It produces straight grooves with consistent walls, making it ideal for engineers, machinists, fabricators, and hobbyists who need reliable, repeatable results. With an 8 mm minimum diameter and a 3 mm groove width, this MFL-design tool in Grade K20 carbide delivers durable performance in a variety of materials.
- Straight groove geometry: Delivers clean, straight groove walls for reliable seating and straightforward finishing, unlike rounded profiles from other bar designs.
- Hard-wearing K20 carbide: Built to resist wear for longer tool life, reducing downtime and the need for frequent tool changes in demanding grooving jobs.
- Ready-to-use in standard setups: Designed for easy integration with common face grooving configurations, providing stable, consistent results across multiple runs.
This tool helps streamline your grooving workflow by delivering precise grooves with fewer passes, minimizing post-process finishing, and delivering repeatable dimensions across parts. Its robust construction and targeted geometry support reliable performance in production, prototyping, and repair work, giving you confidence to tackle challenging grooves with consistent quality.
Part Numbers
- Protool Part Number
- MFL6B3.0L30K20
- 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.
Full Range: Carmex Carbide Tiny Tools - Face Grooving - Grade K20 (MFL)
View full collection →You are viewing MFL6B3.0L30K20. Click any other SKU to view its full details.
| Product SKU | Minimum Diameter | Groove Width | Groove Depth | Reach | Radius | Grade | Holder | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|---|
| MFL5B2.0L23K20 | 6 | 2 | 5 | 23 | 0.1 | K20 | SIM****H5 | £23.30 | 5 days | |
| MFL5B0.75L22K20 | 6 | 0.75 | 1.2 | 22 | 0.1 | K20 | SIM****H5 | £26.23 | 5 days | |
| MFL6B1.0L22K20 | 8 | 1 | 1.5 | 22 | 0.1 | K20 | SIM****H6 | £26.73 | 5 days | |
| MFL4B0.75L15K20 | 5 | 0.75 | 1.2 | 15 | 0.1 | K20 | SIM****H4 | £23.18 | 5 days | |
| MFL4B2.0L17K20 | 5 | 2 | 5 | 17 | 0.1 | K20 | SIM****H4 | £21.63 | 5 days | |
| MFL6B2.5L22K20 | 8 | 2.5 | 4.8 | 22 | 0.1 | K20 | SIM****H6 | £26.73 | 5 days | |
| MFL5B1.0L22K20 | 6 | 1 | 1.5 | 22 | 0.1 | K20 | SIM****H5 | £26.23 | 5 days | |
| MFL6B2.0L22K20 | 8 | 2 | 3 | 22 | 0.1 | K20 | SIM****H6 | £26.73 | 5 days | |
| MFL4B0.5L15K20 | 5 | 0.5 | 1.2 | 15 | 0.05 | K20 | SIM****H4 | £19.63 | 5 days | |
| MFL6B3.0L30K20 Viewing | 8 | 3 | 6 | 30 | 0.1 | K20 | SIM****H6 | £28.10 | 5 days | |
| MFL5B2.0L22K20 | 6 | 2 | 3.8 | 22 | 0.1 | K20 | SIM****H5 | £26.23 | 5 days | |
| MFL5B1.5L23K20 | 6 | 1.5 | 3.5 | 23 | 0.1 | K20 | SIM****H5 | £22.15 | 5 days | |
| MFL4B1.5L15K20 | 5 | 1.5 | 2.8 | 15 | 0.1 | K20 | SIM****H4 | £23.18 | 5 days | |
| MFL5B0.5L22K20 | 6 | 0.5 | 1.2 | 22 | 0.05 | K20 | SIM****H5 | £22.15 | 5 days | |
| MFL5B1.0L23K20 | 6 | 1 | 2.5 | 23 | 0.1 | K20 | SIM****H5 | £22.15 | In Stock | |
| MFL4B1.0L15K20 | 5 | 1 | 1.5 | 15 | 0.1 | K20 | SIM****H4 | £23.18 | 5 days | |
| MFL5B1.5L22K20 | 6 | 1.5 | 2.5 | 22 | 0.1 | K20 | SIM****H5 | £26.23 | 5 days | |
| MFL8B2.5L22K20 | 10 | 2.5 | 3.5 | 22 | 0.1 | K20 | SIM****H8 | £31.80 | 5 days | |
| MFL4B1.5L17K20 | 5 | 1.5 | 3.5 | 17 | 0.1 | K20 | SIM****H4 | £28.25 | 5 days | |
| MFL6B1.5L22K20 | 8 | 1.5 | 2.5 | 22 | 0.1 | K20 | SIM****H6 | £26.73 | 5 days |
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