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Carmex Spiral Mill Threading Insert - Unified - H45I4UNMT7
| Application | Threading |
| Thread Form | UN |
| Internal or External | Internal |
| Insert Size | H45 |
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Carmex Spiral Mill Threading Insert - Unified - H45I4UNMT7 is a spiral milling and threading insert system designed for a wide range of machines and operators—from engineers and buyers to tradespeople and hobbyists. It enables efficient threading and end-milling with a focus on productivity and consistent results.
- Smooth, high-feed cutting: The spiral design delivers a smooth cutting operation at a high feed rate, helping reduce machining time and improve throughput on every job.
- Flexible, multi-insert design: Spiral fluted toolholders hold 1 to 9 inserts in a compact cutting diameter, supporting a broad spectrum of parts—from small components on compact centers to heavy-duty work on powerful milling machines—with a unique clamping method for optimal indexability.
- Durable MT7 inserts with TiN coating: MT7 Sub-Micron Grade inserts with Titanium Nitride multi-layer coating (ISO K10–K20) provide wear resistance across materials, delivering reliable performance and long tool life.
This tooling combination is crafted to improve workflow reliability and finish quality across threading, roughing, and finishing operations. With a focus on stability, durability, and easy indexability, it helps you achieve consistent results, reduce downtime from tool changes, and maintain tight tolerances across a variety of machining tasks.
Part Numbers
- Protool Part Number
- H45I4UNMT7
- 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 H45I4UNMT7. 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 | 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 Viewing | 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 |
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