Please log in here to access all benefits, including promotional discounts and faster checkouts.


Carmex Carbide Tiny Tool - Threading - MIL - Trapez - K20 Grade - 6.4mm Minimum Diameter x 22mm Reach (Left Hand)
| Application | Threading (MIL) |
| Thread Form | Trapez |
| Pitch or Pitch Range | 1.5 |
| Minimum Diameter | 6.4 |
Learn more about Klarna
Compatible holders
The ones our customers buy most.Description
The Carmex Carbide Tiny Tools line includes the Small Threading Trapez Tool (MIL), a precision cutting tool crafted for miniature threading tasks. It’s an ideal choice for engineers, machinists, and hobbyists who need reliable, repeatable threads in tight spaces. Designed to deliver clean, accurate trapezoidal threads on small components, this tool helps you move from prototype to production with confidence.
Made from premium-grade carbide, the tool’s trapezoidal thread design prioritizes precision and consistent results. Its compact size and robust construction make it suitable for a wide range of machines and setups, ensuring you can tackle delicate threading jobs without sacrificing durability or performance.
- Precise small-threading performance: Delivers accurate trapezoidal thread forms on miniature parts, reducing rework and ensuring proper fit and function.
- Durable carbide construction: Crafted from premium K20 carbide for exceptional wear resistance, long tool life, and stable tolerances under demanding use.
- Compact reach with left-hand capability: Tools with a 6.4 mm minimum diameter and 22 mm reach, plus left-hand threading, to access tight areas and complete reverse-threaded work without tool changes.
With these capabilities, the tool helps you streamline threading workflows, shorten setup times, and achieve reliable, high-quality threads across a variety of small-part applications and machines.
Part Numbers
- Protool Part Number
- MIL6L221.5TRK20
- 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 Trapez Tool (MIR)
View full collection →You are viewing MIL6L221.5TRK20. Click any other SKU to view its full details.
| Product SKU | Pitch or Pitch Range | Minimum Diameter | Reach | Thread Size | TR9X2 | TR10X2 | Grade | Holder | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|---|---|
| MIR10L352TRBMK | 2 | 11 | 35 | TR14X2 | TR16X2 | TR18X2 | TR20X2 | BMK | £51.05 | 5 days | |
| MIR10L352TRBXC | 2 | 11 | 35 | TR14X2 | TR16X2 | TR18X2 | TR20X2 | BXC | £46.43 | In Stock | |
| MIR10L353TRBMK | 3 | 10.5 | 35 | TR14X3 | TR22X3 | TR24X3 | TR26X3 | TR28X3 | £51.05 | 5 days | |
| MIR10L353TRBXC | 3 | 10.5 | 35 | TR14X3 | TR22X3 | TR24X3 | TR26X3 | TR28X3 | £46.43 | 5 days | |
| MIR10L454TRBMK | 4 | 11.5 | 45 | TR16X4 | TR18X4 | TR20X4 | BMK | SIM****H10 | £56.53 | 5 days | |
| MIR10L454TRBXC | 4 | 11.5 | 45 | TR16X4 | TR18X4 | TR20X4 | BXC | SIM****H10 | £51.40 | 5 days | |
| MIR10L555TRBMK | 5 | 11 | 55 | TR22X5 | TR24X5 | TR28X5 | BMK | SIM****H10 | £73.33 | 5 days | |
| MIR10L555TRBXC | 5 | 11 | 55 | TR22X5 | TR24X5 | TR28X5 | BXC | SIM****H10 | £66.60 | 5 days | |
| MIR6L221.5TRBMK | 1.5 | 6.4 | 22 | TR8X2 | TR9X2 | TR10X2 | BMK | SIM****H6 | £37.08 | 5 days | |
| MIR6L221.5TRBXC | 1.5 | 6.4 | 22 | TR8X2 | TR9X2 | TR10X2 | BXC | SIM****H6 | £33.73 | 5 days | |
| MIR7L252TRBMK | 2 | 6.9 | 25 | TR9X2 | TR10X2 | TR11X2 | TR12X2 | BMK | £42.15 | 5 days | |
| MIR7L252TRBXC | 2 | 6.9 | 25 | TR9X2 | TR10X2 | TR11X2 | TR12X2 | BXC | £38.28 | 5 days | |
| MIR7L353TRBMK | 3 | 7.5 | 35 | TR11X3 | TR12X3 | BMK | SIM****H7 | £46.25 | 5 days | ||
| MIR7L353TRBXC | 3 | 7.5 | 35 | TR11X3 | TR12X3 | BXC | SIM****H7 | £42.05 | 5 days | ||
| MIR10L454TRK20 | 4 | 11.5 | 45 | TR16X4 | TR18X4 | TR20X4 | K20 | SIM****H10 | £48.80 | 5 days | |
| MIR7L252TRK20 | 2 | 6.9 | 25 | TR9X2 | TR10X2 | TR11X2 | TR12X2 | K20 | £36.43 | 5 days | |
| MIR7L353TRK20 | 3 | 7.5 | 35 | TR11X3 | TR12X3 | K20 | SIM****H7 | £39.93 | 5 days | ||
| MIR10L352TRK20 | 2 | 11 | 35 | TR14X2 | TR16X2 | TR18X2 | TR20X2 | K20 | £44.10 | 5 days | |
| MIR10L353TRK20 | 3 | 10.5 | 35 | TR14X3 | TR22X3 | TR24X3 | TR26X3 | TR28X3 | £44.10 | 5 days | |
| MIR6L221.5TRK20 | 1.5 | 6.4 | 22 | TR8X2 | TR9X2 | TR10X2 | K20 | SIM****H6 | £27.08 | 5 days | |
| MIR10L555TRK20 | 5 | 11 | 55 | TR22X5 | TR24X5 | TR28X5 | K20 | SIM****H10 | £63.25 | 5 days | |
| MIR7L252TRTNX | 2 | 6.9 | 25 | TR9X2 | TR10X2 | TR11X2 | TR12X2 | TNX | £38.83 | 5 days | |
| MIR7L353TRTNX | 3 | 7.5 | 35 | TR11X3 | TR12X3 | TNX | SIM****H7 | £42.65 | In Stock | ||
| MIL10L352TRBMK | 2 | 11 | 35 | TR14X2 | TR16X2 | TR18X2 | TR20X2 | BMK | £51.05 | 5 days | |
| MIL10L352TRBXC | 2 | 11 | 35 | TR14X2 | TR16X2 | TR18X2 | TR20X2 | BXC | £46.43 | 5 days | |
| MIL10L352TRK20 | 2 | 11 | 35 | TR14X2 | TR16X2 | TR18X2 | TR20X2 | K20 | £44.10 | 5 days | |
| MIL10L353TRBMK | 3 | 10.5 | 35 | TR14X3 | TR22X3 | TR24X3 | TR26X3 | TR28X3 | £51.05 | 5 days | |
| MIL10L353TRBXC | 3 | 10.5 | 35 | TR14X3 | TR22X3 | TR24X3 | TR26X3 | TR28X3 | £46.43 | 5 days | |
| MIL10L353TRK20 | 3 | 10.5 | 35 | TR14X3 | TR22X3 | TR24X3 | TR26X3 | TR28X3 | £44.10 | 5 days | |
| MIL10L454TRBMK | 4 | 11.5 | 45 | TR16X4 | TR18X4 | TR20X4 | BMK | SIM****H10 | £56.53 | 5 days | |
| MIL10L454TRBXC | 4 | 11.5 | 45 | TR16X4 | TR18X4 | TR20X4 | BXC | SIM****H10 | £51.40 | In Stock | |
| MIL10L454TRK20 | 4 | 11.5 | 45 | TR16X4 | TR18X4 | TR20X4 | K20 | SIM****H10 | £48.80 | 5 days | |
| MIL10L555TRBMK | 5 | 11 | 55 | TR22X5 | TR24X5 | TR28X5 | BMK | SIM****H10 | £73.33 | 5 days | |
| MIL10L555TRBXC | 5 | 11 | 55 | TR22X5 | TR24X5 | TR28X5 | BXC | SIM****H10 | £66.60 | 5 days | |
| MIL10L555TRK20 | 5 | 11 | 55 | TR22X5 | TR24X5 | TR28X5 | K20 | SIM****H10 | £63.25 | 5 days | |
| MIL6L221.5TRBMK | 1.5 | 6.4 | 22 | TR8X2 | TR9X2 | TR10X2 | BMK | SIM****H6 | £31.33 | 5 days | |
| MIL6L221.5TRBXC | 1.5 | 6.4 | 22 | TR8X2 | TR9X2 | TR10X2 | BXC | SIM****H6 | £30.65 | 5 days | |
| MIL6L221.5TRK20 Viewing | 1.5 | 6.4 | 22 | TR8X2 | TR9X2 | TR10X2 | K20 | SIM****H6 | £27.08 | 5 days | |
| MIL7L252TRBMK | 2 | 6.9 | 25 | TR9X2 | TR10X2 | TR11X2 | TR12X2 | BMK | £42.15 | 5 days | |
| MIL7L252TRBXC | 2 | 6.9 | 25 | TR9X2 | TR10X2 | TR11X2 | TR12X2 | BXC | £38.28 | 5 days | |
| MIL7L252TRK20 | 2 | 6.9 | 25 | TR9X2 | TR10X2 | TR11X2 | TR12X2 | K20 | £36.43 | 5 days | |
| MIL7L252TRTNX | 2 | 6.9 | 25 | TR9X2 | TR10X2 | TR11X2 | TR12X2 | TNX | £38.83 | 5 days | |
| MIL7L353TRBMK | 3 | 7.5 | 35 | TR11X3 | TR12X3 | BMK | SIM****H7 | £46.25 | 5 days | ||
| MIL7L353TRBXC | 3 | 7.5 | 35 | TR11X3 | TR12X3 | BXC | SIM****H7 | £42.05 | 5 days | ||
| MIL7L353TRK20 | 3 | 7.5 | 35 | TR11X3 | TR12X3 | K20 | SIM****H7 | £39.93 | 5 days | ||
| MIL7L353TRTNX | 3 | 7.5 | 35 | TR11X3 | TR12X3 | TNX | SIM****H7 | £42.68 | 5 days |
No products match your filters.



