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Carmex Thread Mills Solid Carbide - For Aluminium - UN (UNC UNF UNEF UNS) - 1/4 x 20 - UnCoated
| Thread Form | UN (UNC UNF UNEF UNS) |
| Size | 1/4 |
| Pitch | 20 |
| Diameter (D) | 4.8 |
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Description
Engineered for high-speed aluminum threading, Carmex AMT Solid Carbide Thread Mills deliver precise 1/4"-20 threads in aluminum parts. This uncoated tool is designed for machinists and manufacturers who demand clean threads, smooth finishes, and reliable chip evacuation.
- Diameter x Thread: 1/4" diameter, 20 TPI thread form compatible with UNC/UNF/UNEF/UNS threading in aluminum.
- Material: Solid carbide with a smooth, uncoated cutting edge for consistent performance and wear resistance.
- Shank: Cylindrical shank by default; Weldon shank available on request for enhanced clamping and rigidity.
- Coolant: Internal coolant bore provides effective cooling and efficient chip evacuation during deep or long-thread milling.
- AMT Line: Part of the AMT family, engineered to meet the demands of high-speed aluminum machining with dependable precision.
- Cutting Edge: Optimized edge geometry designed to minimize built-up edge on aluminum for a cleaner thread profile.
This thread mill excels in producing tight, repeatable 1/4"-20 threads in aluminum components such as enclosures, housings, and lightweight brackets. The combination of carbide hardness, a smooth cutting edge, and an internal coolant channel helps you achieve superior surface finish, longer tool life, and efficient chip management. When you need reliable threading performance in aluminum, the Carmex AMT thread mill offers a focused solution that pairs precision with practical versatility.
Part Numbers
- Protool Part Number
- AMT06048C1420UNK20
- 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 Solid Carbide Thread Mills For Aluminium - UN (UNC,UNF,UNEF) (AMT)
View full collection →You are viewing AMT06048C1420UNK20. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Flute Length | Reach | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| AMT06032C932UNK20 | No. 8 No. 10 No. 12 | 32 | 9.1 | 9.1 | 58 | £100.90 | 5 days | |
| AMT06048C1420UNK20 Viewing | 1/4 | 20 | 14.6 | 14.6 | 58 | £100.90 | 5 days | |
| AMT06052C1428UNK20 | 1/4 | 28 | 14 | 14 | 58 | £100.90 | 5 days | |
| AMT0606C1718UNK20 | 5/16 | 18 | 17.6 | 17.6 | 58 | £100.90 | In Stock | |
| AMT08074C2116UNK20 | 3/8 | 16 | 21.4 | 21.4 | 64 | £134.42 | 5 days | |
| AMT0808D2024UNK20 | 3/8 9/16 - 5/8 | 24 | 20.6 | 20.6 | 64 | £134.42 | 5 days | |
| AMT10092C2320UNK20 | 7/16 | 20 | 23.5 | 23.5 | 73 | £155.06 | 5 days | |
| AMT1212D3018UNK20 | 9/16 - 5/8 1 1/8 - 1 5/8 | 18 | 30.3 | 30.3 | 84 | £194.02 | 5 days | |
| AMT1616E3816UNK20 | 3/4 | 16 | 38.9 | 38.9 | 105 | £228.88 | 5 days |
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