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Carmex Carbide Tiny Tool - Threading - MIL - MJ - K20 Grade - 4.9mm Minimum Diameter x 15mm Reach (Left Hand)
| Application | Threading (MIL) |
| Thread Form | MJ |
| Pitch or Pitch Range | 0.8 |
| Minimum Diameter | 4.9 |
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Description
The Carmex Carbide Tiny Tool is a precision threading cutter designed for small-diameter applications. Built around the MJ thread design, it delivers accurate, repeatable thread profiles on miniature parts. Crafted from premium K20-grade carbide, this tool combines hardness and wear resistance to handle demanding cuts with confidence. With a 4.9 mm minimum diameter and a 15 mm reach in a left-hand configuration, it excels in tight spaces and common machining setups.
- MJ Thread Design for Small Threads: Delivers clean, accurate thread profiles on tiny parts with stable geometry, reducing chatter and rework for consistent results.
- Durable K20-Grade Carbide: Hard, wear-resistant material that extends tool life and maintains sharpness through tough threading cuts, lowering downtime and replacement frequency.
- Compact Left-Hand Tool with Broad Machine Compatibility: Suited for tight cavities and limited-access areas, easily integrates with a wide range of machines to streamline setup and production.
This tool helps you complete delicate threading tasks more efficiently, delivering reliable results across small parts and assemblies. Its combination of precise MJ threading, durable carbide, and compact, versatile design supports faster setups, fewer reworks, and improved overall workflow in both production and repair environments.
Part Numbers
- Protool Part Number
- MIL4L150.8MJK20
- 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 MJ Tool (MIR)
View full collection →You are viewing MIL4L150.8MJK20. Click any other SKU to view its full details.
| Product SKU | Thread Form | Pitch or Pitch Range | Minimum Diameter | Reach | Grade | Holder | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| MIR3L150.7MJBMK | MJ | 0.7 | 3.2 | 15 | BMK | SIM****H3 | £27.43 | 5 days | |
| MIR3L150.7MJBXC | MJ | 0.7 | 3.2 | 15 | BXC | SIM****H3 | £25.00 | In Stock | |
| MIR4L150.8MJBMK | MJ | 0.8 | 4.9 | 15 | BMK | SIM****H4 | £21.08 | 5 days | |
| MIR4L150.8MJBXC | MJ | 0.8 | 4.9 | 15 | BXC | SIM****H4 | £25.00 | In Stock | |
| MIR5L151.0MJBMK | MJ | 1 | 5 | 15 | BMK | SIM****H5 | £27.48 | In Stock | |
| MIR5L151.0MJBXC | MJ | 1 | 5 | 15 | BXC | SIM****H5 | £25.00 | 5 days | |
| MIR4L150.8MJK20 | MJ | 0.8 | 4.9 | 15 | K20 | SIM****H4 | £20.08 | 5 days | |
| MIR3L150.7MJK20 | MJ | 0.7 | 3.2 | 15 | K20 | SIM****H3 | £20.08 | 5 days | |
| MIR5L151.0MJK20 | MJ | 1 | 5 | 15 | K20 | SIM****H5 | £20.08 | 5 days | |
| MIL3L150.7MJBMK | MJ | 0.7 | 3.2 | 15 | BMK | SIM****H3 | £23.18 | 5 days | |
| MIL3L150.7MJBXC | MJ | 0.7 | 3.2 | 15 | BXC | SIM****H3 | £21.10 | 5 days | |
| MIL3L150.7MJK20 | MJ | 0.7 | 3.2 | 15 | K20 | SIM****H3 | £20.08 | 5 days | |
| MIL4L150.8MJBMK | MJ | 0.8 | 4.9 | 15 | BMK | SIM****H4 | £27.43 | 5 days | |
| MIL4L150.8MJBXC | MJ | 0.8 | 4.9 | 15 | BXC | SIM****H4 | £21.10 | 5 days | |
| MIL4L150.8MJK20 Viewing | MJ | 0.8 | 4.9 | 15 | K20 | SIM****H4 | £20.08 | 5 days | |
| MIL5L151.0MJBMK | MJ | 1 | 5 | 15 | BMK | SIM****H5 | £21.50 | 5 days | |
| MIL5L151.0MJBXC | MJ | 1 | 5 | 15 | BXC | SIM****H5 | £21.10 | 5 days | |
| MIL5L151.0MJK20 | MJ | 1 | 5 | 15 | K20 | SIM****H5 | £20.08 | 5 days |
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