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

Carmex Vertical Milling CMT Three Flute Insert - Threading - C12G55MT7

SKU:C12G55MT7

The Carmex Vertical Milling CMT Three Flute Insert - Threading - C12G55MT7 is a vertical milling indexable insert system designed to tackle threading, grooves, chamfers and more. It’s built for p... Read more ↓
P
M
K
N
S
H
ApplicationThreading
Thread FormPartial (55° Degree)
Internal or ExternalInternal & External
Insert Diameter12
Pitch28-19
Number of Flutes3
View all specifications ↓
Download Cutting Data
£27.28
Prices shown ex. VAT
In Stock— only 1 left
View Other Sizes →
Free delivery over £50 ex VAT
Secure checkout
14-day returns
30+ years expertise
Klarna
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
Learn more about Klarna
Speak to our team
01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

The Carmex Vertical Milling CMT Three Flute Insert - Threading - C12G55MT7 is a vertical milling indexable insert system designed to tackle threading, grooves, chamfers and more. It’s built for professionals who demand accurate thread forms and versatile capabilities in a single insert. These ground-profile inserts are designed for high machining parameters and excellent surface quality, and they work with toolholders that include a weldon shank and coolant bore. Chamfer inserts are also available to expand setup options.

  • Ground-profile inserts for precision and performance: Achieve tight tolerances and smooth finishes, even under demanding milling conditions, with precision-ground profiles that support consistent thread forms and high surface quality.
  • Solid, accurate clamping for repeatable results: A robust, exacting clamp minimizes deflection, ensuring repeatable performance across passes and multiple parts.
  • One insert for right- or left-hand threads: Simplifies setup and reduces inventory by enabling both threading directions with a single insert.

Designed to integrate into your vertical milling workflow, this insert helps you produce precise threads, grooves, and chamfers faster and more reliably. The combination of ground-profile inserts and reliable clamping supports high-quality finishes, while universal threading capability and coolant-bore toolholders streamline changes and maintenance, helping your shop run smoother and more predictably.

Application Threading
Thread Form Partial (55° Degree)
Internal or External Internal & External
Insert Diameter 12
Pitch 28-19
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.

★★★★★
Nice experience staff are very helpful and interested...
Staff are very helpful and interested in providing a good service making us the customer feel valued.
Bill
★★★★★
first place we look
honest about stock and prices are competitive.
Phil
★★★★★
Polite and helpful
Staff are very helpful and polite.Goods that were in stock were dispatched same day and back orders were quick in coming through .
Graham
★★★★★
Buying experience
Phone requests are handled quickly and without any fuss. The website is easy to use and straightforward to order from. It’s especially helpful that it shows real‑time availability, so we don’t need to call to confirm whether parts will arrive.
Jeremy

Full Range: Carmex Vertical Milling CMT Single Flute Inserts - Partial Profile 55° BSP/BSF/BSW

View full collection →

You are viewing C12G55MT7. Click any other SKU to view its full details.

Product SKUInsert SizePitchPriceStock Order
C10G55MT7 1019-14£26.76 In Stock
C12G55MT7 Viewing1228-19£27.28 In Stock
C12N55MT7 12.214-11£27.28 In Stock
C18G55MT7 1814-8£31.98 5 days
C25N55MT7 257-5£36.84 In Stock