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

Carmex Spiral Mill Threading Insert - Unified - H32I8UNMT7
| Application | Threading |
| Thread Form | UN |
| Internal or External | Internal |
| Insert Size | H32 |
Learn more about Klarna
Compatible holders
The ones our customers buy most.Description
Carmex Spiral Mill Threading Insert - Unified - H32I8UNMT7 is a versatile modular tool system designed for threading and milling tasks across a wide range of machines. Its spiral design enables smooth cutting at higher feed rates, helping you cut cycle times and boost productivity whether you’re working on small components in compact centers or tackling heavy-duty production on high-power mills.
- Smooth, high-feed cutting: The spiral geometry reduces cutting forces and vibration, delivering clean threads and finished surfaces with faster material removal and shorter machining times.
- Compact insert capacity with precise indexing: Toolholders accommodate 1 to 9 inserts in a small cutting diameter, and the unique clamping method ensures reliable, repeatable indexability for quick, accurate tool changes.
- MT7 TiN-coated inserts for universal use: Sub-Micron MT7 inserts with Titanium Nitride multi-layer coating (ISO K10-K20) provide durable wear resistance and consistent performance across all materials and applications—from threading to rough and finish milling.
This system is built for reliable, repeatable results in real-world environments. By combining efficient chip removal with a robust clamping design and durable, universal inserts, Carmex Spiral Mill Threading Inserts help you improve throughput, reduce downtime, and achieve high-quality finishes across a broad range of materials and operations.
Part Numbers
- Protool Part Number
- H32I8UNMT7
- Brand
- Carmex
- Category
- Thread Mill
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 Spiral Mill Threading Inserts - Unified
View full collection →You are viewing H32I8UNMT7. Click any other SKU to view its full details.
| Product SKU | Insert Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| H13I16UNMT7 | H13 | 16 | £36.58 | 5 days | |
| H13I14UNMT7 | H13 | 14 | £36.58 | 5 days | |
| H13I12UNMT7 | H13 | 12 | £36.58 | 5 days | |
| H15I16UNMT7 | H15 | 16 | £36.58 | 5 days | |
| H15I14UNMT7 | H15 | 14 | £36.58 | 5 days | |
| H15I12UNMT7 | H15 | 12 | £36.58 | 5 days | |
| H15I10UNMT7 | H15 | 10 | £36.58 | 5 days | |
| H17I20UNMT7 | H17 | 20 | £36.58 | 5 days | |
| H17I16UNMT7 | H17 | 16 | £36.58 | 5 days | |
| H17I14UNMT7 | H17 | 14 | £36.58 | 5 days | |
| H17I12UNMT7 | H17 | 12 | £36.58 | 5 days | |
| H17I9UNMT7 | H17 | 9 | £36.58 | 5 days | |
| H19I12UNMT7 | H19 | 12 | £36.58 | 5 days | |
| H19I8UNMT7 | H19 | 8 | £36.58 | 5 days | |
| H23I32UNMT7 | H23 | 32 | £46.23 | 5 days | |
| H23I24UNMT7 | H23 | 24 | £60.18 | 5 days | |
| H23E20UNMT7 | H23 | 20 | £46.23 | 5 days | |
| H23I20UNMT7 | H23 | 20 | £60.18 | 5 days | |
| H23E18UNMT7 | H23 | 18 | £46.23 | 5 days | |
| H23I18UNMT7 | H23 | 18 | £60.18 | 5 days | |
| H23E16UNMT7 | H23 | 16 | £46.23 | 5 days | |
| H23I16UNMT7 | H23 | 16 | £60.18 | 5 days | |
| H23E14UNMT7 | H23 | 14 | £46.23 | 5 days | |
| H23I14UNMT7 | H23 | 14 | £60.18 | 5 days | |
| H23E12UNMT7 | H23 | 12 | £46.23 | 5 days | |
| H23I12UNMT7 | H23 | 12 | £60.18 | 5 days | |
| H23E10UNMT7 | H23 | 10 | £46.23 | 5 days | |
| H23I10UNMT7 | H23 | 10 | £46.23 | 5 days | |
| H23E8UNMT7 | H23 | 8 | £46.23 | 5 days | |
| H23I8UNMT7 | H23 | 8 | £60.18 | 5 days | |
| H23E7UNMT7 | H23 | 7 | £46.23 | 5 days | |
| H23I7UNMT7 | H23 | 7 | £60.18 | 5 days | |
| H28I12UNMT7 | H28 | 12 | £48.93 | 5 days | |
| H28I8UNMT7 | H28 | 8 | £48.93 | 5 days | |
| H28I6UNMT7 | H28 | 6 | £48.93 | 5 days | |
| H32E24UNMT7 | H32 | 24 | £48.93 | 5 days | |
| H32E20UNMT7 | H32 | 20 | £48.93 | 5 days | |
| H32I20UNMT7 | H32 | 20 | £63.70 | 5 days | |
| H32E18UNMT7 | H32 | 18 | £48.93 | 5 days | |
| H32I18UNMT7 | H32 | 18 | £63.70 | 5 days | |
| H32E16UNMT7 | H32 | 16 | £48.93 | 5 days | |
| H32I16UNMT7 | H32 | 16 | £63.70 | 5 days | |
| H32E12UNMT7 | H32 | 12 | £48.93 | 5 days | |
| H32I12UNMT7 | H32 | 12 | £63.70 | 5 days | |
| H32E8UNMT7 | H32 | 8 | £48.93 | 5 days | |
| H32I8UNMT7 Viewing | H32 | 8 | £63.70 | 5 days | |
| H32E6UNMT7 | H32 | 6 | £48.93 | 5 days | |
| H32I6UNMT7 | H32 | 6 | £63.70 | 5 days | |
| H32I5UNMT7 | H32 | 5 | £48.93 | 5 days | |
| H40I6UNMT7 | H40 | 6 | £54.33 | 5 days | |
| H40I4.5UNMT7 | H40 | 4.5 | £54.33 | 5 days | |
| H45I16UNMT7 | H45 | 16 | £70.73 | 5 days | |
| H45I12UNMT7 | H45 | 12 | £70.73 | 5 days | |
| H45I8UNMT7 | H45 | 8 | £70.73 | 5 days | |
| H45I6UNMT7 | H45 | 6 | £70.73 | 5 days | |
| H45I4.5UNMT7 | H45 | 4.5 | £54.33 | 5 days | |
| H45I4UNMT7 | H45 | 4 | £54.33 | 5 days | |
| H63I16UNMT7 | H63 | 16 | £70.73 | 5 days | |
| H63I12UNMT7 | H63 | 12 | £70.73 | 5 days | |
| H63I8UNMT7 | H63 | 8 | £70.73 | 5 days | |
| H63I6UNMT7 | H63 | 6 | £70.73 | 5 days | |
| H63I4UNMT7 | H63 | 4 | £54.33 | 5 days |
No products match your filters.





