Please log in here to access all benefits, including promotional discounts and faster checkouts.

Carmex Vertical Milling CMT Multi Flute Insert - Grooving - SG200FW121MT8
| Application | Grooving |
| Internal or External | Internal & External |
| Insert Diameter | 20 |
| Width | 1.21 |
Learn more about Klarna
Compatible holders
The ones our customers buy most.Description
The Carmex Vertical Milling CMT Multi Flute Insert - Grooving - SG200FW121MT8 is a vertical milling indexable insert system designed for a wide range of machining tasks, including threads, grooves, chamfers, and more. Paired with compatible tool holders, it provides fast, repeatable setups for shops that demand reliable performance across diverse operations.
Ground-profile inserts deliver high precision and excellent surface quality, even at demanding cutting conditions. A solid, accurate clamping method ensures full repeatability across multiple parts and jobs, helping you maintain tight tolerances with confidence. The same insert can handle both right- and left-hand threads, reducing inventory complexity, while the toolholders come with a Weldon shank and a coolant bore to support stable performance and coolant-through capability. Chamfer inserts are also available to expand your milling options without changing systems.
- Ground-profile inserts for precision and surface quality: Delivers consistent geometry and excellent finish at high machining parameters.
- Solid, repeatable clamping: Provides reliable part-to-part repeatability and reduces setup variability.
- Universal threading with compatible toolholders: One insert handles both right- and left-hand threads, with Weldon shank toolholders and coolant bore support for stable, versatile milling ( Chamfer inserts available as an add-on).
This versatile vertical milling solution helps you streamline operations, improve throughput, and achieve dependable results across threads, grooves, and chamfers. With its precise ground profile, robust clamping, and universal threading capability, it’s designed to deliver consistent performance in demanding manufacturing environments.
Part Numbers
- Protool Part Number
- SG200FW121MT8
- Brand
- Carmex
- Category
- Thread Mill
Need cutting data? Call 01732 887334 or email sales@protool-ltd.co.uk.
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 CMT Vertical Milling Multi Flute Inserts - Groove Milling
View full collection →You are viewing SG200FW121MT8. Click any other SKU to view its full details.
| Product SKU | Insert Size | Width | Groove Depth | Price | Stock | Order |
|---|---|---|---|---|---|---|
| SG170FW15MT8 | 17 | 1.5 | 2.8 | £37.80 | In Stock | |
| SG170FW20MT8 | 17 | 2 | 2.8 | £37.80 | 5 days | |
| SG170FW25MT8 | 17 | 2.5 | 2.8 | £37.80 | 5 days | |
| SG200EW20TMT8 | 20 | 2 | 3.7 | £39.28 | 5 days | |
| SG200EW25TMT8 | 20 | 2.5 | 3.7 | £39.28 | 5 days | |
| SG200EW30TMT8 | 20 | 3 | 3.7 | £39.28 | 5 days | |
| SG200FW121MT8 Viewing | 20 | 1.21 | 4 | £41.06 | 5 days | |
| SG200FW141MT8 | 20 | 1.41 | 4 | £41.06 | 5 days | |
| SG200FW15MT8 | 20 | 1.5 | 2.9 | £37.80 | 5 days | |
| SG200FW171MT8 | 20 | 1.71 | 4 | £41.06 | 5 days | |
| SG200FW196MT8 | 20 | 1.96 | 4 | £41.06 | 5 days | |
| SG200FW20MT8 | 20 | 2 | 2.9 | £37.80 | 5 days | |
| SG200FW25MT8 | 20 | 2.5 | 2.9 | £37.80 | 5 days | |
| SG200FW30MT8 | 20 | 3 | 2.9 | £37.80 | 5 days | |
| SG200FW40MT8 | 20 | 4 | 2.9 | £37.80 | 5 days | |
| SG200FW49MT8 | 20 | 4.9 | 2.9 | £37.80 | 5 days | |
| SG350FW30TMT8 | 35 | 3 | 6.3 | £84.50 | 5 days | |
| SG350FW40TMT8 | 35 | 4 | 6.3 | £99.96 | 5 days | |
| SG350FW50TMT8 | 35 | 5 | 6.3 | £89.52 | 5 days | |
| SG350FW60TMT8 | 35 | 6 | 6.3 | £89.52 | 5 days | |
| SG350FW80TMT8 | 35 | 8 | 6.3 | £89.52 | 5 days |
No products match your filters.






