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Carmex Thread Mills Carbide - Single Point - ACME - 5/8 - 8 x 8 - MT11
| Thread Form | ACME |
| Size | 5/8 - 8 |
| Pitch | 8 |
| Diameter (D) | 10.4 |
| Flute Length (l) | 27.9 |
| Shank Diameter (d) | 1/2 |
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Engineered for precision internal threading, Carmex's carbide thread mill combines a single-point design with MT11 taper to deliver crisp, accurate threads in ACME and other common internal-thread forms. This tool is built for machinists who demand consistency, durability, and clean finishes on metal parts.
- Thread mill type: Full-profile, carbide single-point thread mill designed for cutting internal threads with stable geometry across passes.
- Thread forms supported: Capable of producing internal threads including ISO M1 x 0.25 up to 0-80 UNF.
- Depth capability: Thread depth can reach up to 3.5 times the thread diameter, depending on the profile and application.
- Flute count: Multi-flute design (3–4 flutes) for balanced rigidity, smooth entry, and efficient chip evacuation.
- Material and coating: Solid carbide core with MT11 Ultra-fine sub-micron grade and triple blue PVD coating for enhanced wear resistance and tool life.
- Size and interface: 5/8" diameter with an 8 x 8 footprint and MT11 taper for compatibility with common milling setups.
This thread mill helps you achieve reliable internal threads with excellent surface finish, even in challenging materials. The combination of a fine-grain carbide core and the advanced PVD coating reduces wear, extends tool life, and supports repeatable tolerances. The 3–4 flute geometry offers robust stability and effective debris evacuation, which translates to cleaner threads and fewer reworks. Whether you’re prototyping or producing parts, this tool is suited for precision work in mechanical assemblies, lead screws, and threaded components that require consistent internal threading performance.
| Thread Form | ACME |
| Size | 5/8 - 8 |
| Pitch | 8 |
| Diameter (D) | 10.4 |
| Flute Length (l) | 27.9 |
| Shank Diameter (d) | 1/2 |
| No of Flutes | 4 |
| Overall Length (L) | 89 |
| Thread Mill Style | Single Point |
| Internal or External | Internal |
| Coating | MT11 |
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 Thread Mills - ACME Mini Type For Internal Thread Inch Shank (MTI)
View full collection →You are viewing MTI0500D118ACMEMT8. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Reach | Shank Diameter | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| MTI0250C0416ACMEMT8 | 1/4 - 16 | 16 | 9.7 | 1/4 | 64 | £95.44 | 5 days | |
| MTI0250C0614ACMEMT8 | 5/16 - 14 | 14 | 15.2 | 1/4 | 64 | £95.44 | 5 days | |
| MTI0250C0812ACMEMT8 | 3/8 - 12 7/16 - 12 | 12 | 19.1 | 1/4 | 64 | £95.44 | In Stock | |
| MTI0375D1010ACMEMT8 | 1/2 - 10 | 10 | 25.4 | 3/8 | 76 | £164.62 | 5 days | |
| MTI0500D118ACMEMT8 Viewing | 5/8 - 8 | 8 | 27.9 | 1/2 | 89 | £203.92 | In Stock | |
| MTI0500D126ACMEMT8 | 3/4 7/8 | 6 | 30.5 | 1/2 | 89 | £203.92 | 5 days | |
| MTI0625E155ACMEMT8 | 1 - 5 1 1/8 - 5 1 1/4 - 5 | 5 | 38.1 | 5/8 | 102 | £254.82 | 5 days |
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