Please log in here to access all benefits, including promotional discounts and faster checkouts.
Carmex Carbide Tiny Tool - Threading - MIL - UNJ (UNJC,UNJF,UNJEF,UNJS) - K20 Grade - 5mm Minimum Diameter x 18mm Reach (Left Hand)
| Application | Threading (MIL) |
| Thread Form | UNJ (UNJC UNJF UNJEF UNJS) |
| Pitch or Pitch Range | 20 |
| Minimum Diameter | 5 |
Learn more about Klarna
Compatible holders
The ones our customers buy most.
Description
The Carmex Carbide Tiny Tools Small Threading UNJ Tool (MIL) is a precision cutting tool engineered for threading tiny features with exceptional accuracy. Designed for a wide range of small-part applications, it delivers consistent UNJ thread profiles that meet tight tolerances on compact components.
- UNJ Thread Design for Precision: Engineered to produce high-accuracy UNJ threads, ensuring reliable fit and repeatable results on miniature parts.
- Compact Size with 18 mm Reach (Left Hand): 5 mm minimum diameter and 18 mm reach enable threading in tight spaces, with a left-hand orientation that supports left-handed threading needs.
- Premium K20 Carbide Durability: Made from hard, wear-resistant carbide for long tool life and stable performance across demanding threading tasks.
This tool is built to integrate with a broad range of machines, offering dependable performance where small-diameter threading matters most. Choose it to improve production efficiency, reduce rework, and achieve consistent, quality threads on miniature components.
Part Numbers
- Protool Part Number
- MIL5L1820UNJK20
- Brand
- Carmex
- Category
- Tiny Tool Inserts
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 Tiny Tools - Small Threading UNJ Tool (MIR)
View full collection →You are viewing MIL5L1820UNJK20. Click any other SKU to view its full details.
| Product SKU | Pitch or Pitch Range | Minimum Diameter | Reach | Grade | Holder | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| MIR3L1532UNJBMK | 32 | 3.2 | 15 | BMK | SIM****H3 | £21.08 | 5 days | |
| MIR3L1532UNJBXC | 32 | 3.2 | 15 | BXC | SIM****H3 | £25.00 | 5 days | |
| MIR5L1528UNJBMK | 28 | 4.9 | 15 | BMK | SIM****H5 | £27.43 | 5 days | |
| MIR5L1528UNJBXC | 28 | 4.9 | 15 | BXC | SIM****H5 | £25.00 | In Stock | |
| MIR5L1820UNJBMK | 20 | 5 | 18 | BMK | SIM****H5 | £27.43 | 5 days | |
| MIR5L1820UNJBXC | 20 | 5 | 18 | BXC | SIM****H5 | £25.00 | 5 days | |
| MIR5L1820UNJK20 | 20 | 5 | 18 | K20 | SIM****H5 | £23.75 | 5 days | |
| MIR3L1532UNJK20 | 32 | 3.2 | 15 | K20 | SIM****H3 | £20.08 | 5 days | |
| MIR5L1528UNJK20 | 28 | 4.9 | 15 | K20 | SIM****H5 | £23.75 | 5 days | |
| MIR5L1528UNJTNX | 28 | 4.9 | 15 | TNX | SIM****H5 | £25.35 | 5 days | |
| MIL3L1532UNJBMK | 32 | 3.2 | 15 | BMK | SIM****H3 | £21.50 | 5 days | |
| MIL3L1532UNJBXC | 32 | 3.2 | 15 | BXC | SIM****H3 | £21.10 | 5 days | |
| MIL3L1532UNJK20 | 32 | 3.2 | 15 | K20 | SIM****H3 | £20.08 | 5 days | |
| MIL5L1528UNJBMK | 28 | 4.9 | 15 | BMK | SIM****H5 | £23.18 | 5 days | |
| MIL5L1528UNJBXC | 28 | 4.9 | 15 | BXC | SIM****H5 | £21.10 | 5 days | |
| MIL5L1528UNJK20 | 28 | 4.9 | 15 | K20 | SIM****H5 | £20.08 | 5 days | |
| MIL5L1528UNJTNX | 28 | 4.9 | 15 | TNX | SIM****H5 | £25.35 | 5 days | |
| MIL5L1820UNJBMK | 20 | 5 | 18 | BMK | SIM****H5 | £23.18 | 5 days | |
| MIL5L1820UNJBXC | 20 | 5 | 18 | BXC | SIM****H5 | £21.10 | 5 days | |
| MIL5L1820UNJK20 Viewing | 20 | 5 | 18 | K20 | SIM****H5 | £20.08 | 5 days |
No products match your filters.
