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16 TPI UN Internal Long Reach Thread Mill – Carmex MTQ 1616 E42 16 UN MT7
| Thread Form | UN (UNC UNF UNEF UNS) |
| Size | N/A |
| Pitch | 16 |
| Diameter (D) | 16 |
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Description
Solid carbide thread mill for internal UN threads at 16 TPI. MTQ tools have a relieved neck and internal coolant. They’re for medium and large threads deep in the part: the short cutting length keeps cutting forces down, and the neck gives you the reach. Carmex rates them for thread lengths up to 3xD in one pass.
This is an internal-only thread mill, and Carmex doesn’t list it for external threads – that’s what the separate EMT range is for. MT7 is Carmex’s general-purpose grade: sub-micron carbide with a TiAlN multi-layer coating, meant to run at medium to high cutting speeds across all materials. Carmex rates this tool for material up to 47 HRc.
- Carmex code: MTQ 1616 E42 16 UN MT7
- Thread: 16 TPI UN – UNC/UNF/UNEF/UNS
- Minimum thread diameter: Ø19 mm
- Cutting diameter: Ø16.0 mm
- Flutes: 5
- Cutting length: 42.9 mm
- Overall length: 105 mm
- Shank: Ø16 mm
- Grade: MT7 – TiAlN-coated sub-micron carbide
- Coolant: Internal coolant bore
Part Numbers
- Protool Part Number
- MTQ1616E4216UNMT7
- 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 Carbide Thread Mills - UN - With Relieved Neck & Internal Coolant Bore (MTQ)
View full collection →You are viewing MTQ1616E4216UNMT7. Click any other SKU to view its full details.
| Product SKU | Pitch | Flute Length | Reach | Shank Diameter | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| MTQ1010D3020UNMT7 | 20 | 17.8 | 30.5 | 10 | 73 | £133.36 | 5 days | |
| MTQ1212D3516UNMT7 | 16 | 20.7 | 35 | 12 | 84 | £166.90 | 5 days | |
| MTQ1212D3518UNMT7 | 18 | 19.7 | 35.3 | 12 | 84 | £166.90 | 5 days | |
| MTQ1212D4212UNMT7 | 12 | 25.4 | 42.3 | 12 | 84 | £166.90 | 5 days | |
| MTQ1212E3520UNMT7 | 20 | 20.3 | 35.6 | 12 | 84 | £166.90 | 5 days | |
| MTQ1616E4216UNMT7 Viewing | 16 | 25.4 | 42.9 | 16 | 105 | £196.90 | 5 days | |
| MTQ1616E4514UNMT7 | 14 | 25.4 | 45.3 | 16 | 105 | £196.90 | 5 days | |
| MTQ1616F4320UNMT7 | 20 | 25.4 | 43.2 | 16 | 105 | £196.90 | 5 days | |
| MTQ2020E5512UNMT7 | 12 | 33.9 | 55.1 | 20 | 105 | £237.79 | 5 days | |
| MTQ2020F5816UNMT7 | 16 | 36.5 | 58.8 | 20 | 105 | £237.79 | 5 days |
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