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Carmex Vertical Milling CMT Three Flute Insert - Groove Milling - C12W08
| Application | Grooving |
| Internal or External | Internal & External |
| Insert Diameter | 12 |
| Width | 0.8 |
| Groove Depth | 0.8 |
| Radius | 0.1 |
Learn more about Klarna
Carmex Vertical Milling CMT Three Flute Insert – Groove Milling – C12W08 is a precision vertical milling insert system designed for grooves, threads, chamfers and more. Built for shops and professionals, it pairs a robust three-flute insert with versatile toolholders to deliver consistent, repeatable results in demanding setups.
Engineered for high-precision groove milling, this system uses ground-profile inserts that maintain tight tolerances and smooth surface finish even at elevated cutting parameters. A solid, accurate clamping method ensures full repeatability, while a single insert can handle both right- and left-hand threads, reducing setup time and inventory needs.
- Ground-profile precision: Delivers high-precision groove and thread forms with excellent surface quality, even under high machining parameters.
- Reliable clamping and versatility: Solid, accurate clamping ensures full repeatability; the same insert works for right- or left-hand threads to simplify setups.
- Integrated tooling options: Toolholders include Weldon shank and coolant bore, with chamfer inserts available for streamlined, all-in-one groove and chamfer work.
This combination of precision, flexibility, and practical tooling means faster setups, fewer tool changes, and more consistent results across parts. You can push cutting parameters higher for productivity without sacrificing surface quality, while maintaining tight tolerances on grooves and threads. The Weldon-shank compatibility and coolant capability help keep heat under control and align with your existing machining workflow.
| Application | Grooving |
| Internal or External | Internal & External |
| Insert Diameter | 12 |
| Width | 0.8 |
| Groove Depth | 0.8 |
| Radius | 0.1 |
| Number of Flutes | 3 |
| Holder Code | H3 3.1 4 5 18 19 20 |
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 Vertical Milling CMT Single Flute Inserts - Groove Milling
View full collection →You are viewing C12W08MT7. Click any other SKU to view its full details.
| Product SKU | Insert Size | Width | Groove Depth | Radius | Price | Stock | Order |
|---|---|---|---|---|---|---|---|
| C10W08MT7 | 10 | 0.8 | 0.8 | 0.1 | £23.90 | 5 days | |
| C10W087MT7 | 10 | 0.8 | 0.87 | 0 | £26.42 | 5 days | |
| C10W09MT7 | 10 | 0.9 | 0.9 | 0.1 | £23.90 | 5 days | |
| C10W097MT7 | 10 | 0.9 | 0.97 | 0 | £26.42 | 5 days | |
| C10W10MT7 | 10 | 1 | 0.9 | 0.1 | £23.90 | 5 days | |
| C10W121MT7 | 10 | 1.1 | 1.21 | 0 | £26.42 | 5 days | |
| C10W141MT7 | 10 | 1.3 | 1.41 | 0.1 | £26.42 | 5 days | |
| C10W15MT7 | 10 | 1.5 | 1.2 | 0.1 | £23.90 | In Stock | |
| C10W171MT7 | 10 | 1.6 | 1.71 | 0.1 | £26.42 | 5 days | |
| C10W20MT7 | 10 | 2 | 1.2 | 0.1 | £23.90 | 5 days | |
| C12W08MT7 Viewing | 12 | 0.8 | 0.8 | 0.1 | £24.36 | 5 days | |
| C12W10MT7 | 12 | 1 | 0.9 | 0.1 | £24.36 | 5 days | |
| C12W10TMT7 | 12.3 | 1 | 1.6 | 0.2 | £25.60 | In Stock | |
| C12W121MT7 | 12.4 | 1.1 | 1.21 | 0 | £26.72 | 5 days | |
| C12W141MT7 | 12.4 | 1.3 | 1.41 | 0.1 | £26.72 | 5 days | |
| C12W15MT7 | 12.4 | 1.5 | 1.6 | 0.1 | £25.60 | 5 days | |
| C12W171MT7 | 12.4 | 1.6 | 1.71 | 0.1 | £26.72 | 5 days | |
| C12W20MT7 | 12.4 | 2 | 1.6 | 0.1 | £25.60 | In Stock | |
| C12W25MT7 | 12.4 | 2.5 | 1.6 | 0.1 | £25.60 | 5 days | |
| C18W10MT7 | 17.8 | 1 | 1.5 | 0.1 | £29.10 | 5 days | |
| C18W12MT7 | 17.8 | 1.2 | 1.5 | 0.1 | £29.10 | 5 days | |
| C18W121MT7 | 17.8 | 1.1 | 1.21 | 0.1 | £31.94 | 5 days | |
| C18W141MT7 | 17.8 | 1.3 | 1.41 | 0.1 | £31.94 | 5 days | |
| C18W15MT7 | 17.8 | 1.5 | 1.95 | 0.1 | £29.10 | In Stock | |
| C18W171MT7 | 17.8 | 1.6 | 1.71 | 0.1 | £31.94 | 5 days | |
| C18W196MT7 | 17.8 | 1.85 | 1.96 | 0.15 | £31.94 | 5 days | |
| C18W20MT7 | 17.8 | 2 | 2.8 | 0.2 | £29.10 | 5 days | |
| C25W20MT7 | 25 | 2 | 3 | 0.2 | £33.98 | 5 days | |
| C25W25MT7 | 25 | 2.5 | 3 | 0.2 | £33.98 | 5 days | |
| C25W30MT7 | 25 | 3 | 3 | 0.2 | £33.98 | In Stock | |
| C25W35MT7 | 25 | 3.5 | 3.5 | 0.2 | £33.98 | 5 days | |
| C25W40MT7 | 25 | 4 | 3.5 | 0.2 | £33.98 | In Stock | |
| C25W50MT7 | 25 | 5 | 3.5 | 0.2 | £33.98 | 5 days |
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