Please log in here to access all benefits, including promotional discounts and faster checkouts.
Carmex Carbide Tiny Tool - Threading - MIL - ACME - K20 Grade - 20mm Minimum Diameter x 52mm Reach (Left Hand)
| Application | Threading (MIL) |
| Thread Form | ACME |
| Pitch or Pitch Range | 5 |
| Minimum Diameter | 20 |
Learn more about Klarna
Compatible holders
The ones our customers buy most.
Description
The Carmex Carbide Tiny Tool is a precision threading cutter designed for small-diameter applications. Built around a dedicated ACME thread design, it excels at producing accurate trapezoidal threads on compact parts, making it ideal for engineers, machinists, and hobbyists who work in tight spaces.
Crafted from premium K20-grade carbide and offered in MIL-grade quality, this tool delivers exceptional durability and wear resistance for reliable performance over many cycles. With a 20 mm minimum diameter and a 52 mm reach, plus a left-hand threading option, it fits the needs of small-part threading while remaining compatible with a wide range of machines and systems.
- Left-hand threading capability: Designed to handle left-handed ACME threads, expanding your options for counterclockwise threading tasks without changing tools.
- ACME thread design for precise trapezoidal threads: Optimized geometry delivers consistent, accurate trapezoidal threads on small parts, reducing rework and ensuring dependable fit.
- Premium carbide construction for durability: K20-grade carbide provides excellent wear resistance and edge retention, helping maintain tolerances over multiple passes and longer tool life.
This tiny tool streamlines small-threading workflows by combining a compact form factor with strong, repeatable performance. Its combination of left-hand capability, precise ACME geometry, and durable carbide makes it a reliable choice for production or shop projects where tight tolerances and consistent results matter.
Part Numbers
- Protool Part Number
- MIL10L525ACMEK20
- 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 ACME Tool (MIR)
View full collection →You are viewing MIL10L525ACMEK20. Click any other SKU to view its full details.
| Product SKU | Pitch or Pitch Range | Minimum Diameter | Reach | Grade | Holder | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| MIR10L358ACMEBMK | 8 | 12.5 | 35 | BMK | SIM****H10 | £51.28 | 5 days | |
| MIR10L358ACMEBXC | 8 | 12.5 | 35 | BXC | SIM****H10 | £46.58 | 5 days | |
| MIR10L456ACMEBXC | 6 | 14.6 | 45 | BXC | SIM****H10 | £51.28 | In Stock | |
| MIR10L525ACMEBMK | 5 | 20 | 52 | BMK | SIM****H10 | £62.00 | 5 days | |
| MIR10L525ACMEBXC | 5 | 20 | 52 | BXC | SIM****H10 | £56.38 | 5 days | |
| MIR4L1516ACMEBMK | 16 | 4.6 | 15 | BMK | SIM****H4 | £30.13 | 5 days | |
| MIR4L1516ACMEBXC | 16 | 4.6 | 15 | BXC | SIM****H4 | £27.35 | In Stock | |
| MIR6L2014ACMEBMK | 14 | 6 | 20 | BMK | SIM****H6 | £32.83 | 5 days | |
| MIR6L2014ACMEBXC | 14 | 6 | 20 | BXC | SIM****H6 | £29.85 | In Stock | |
| MIR7L2212ACMEBMK | 12 | 7.2 | 22 | BMK | SIM****H7 | £38.33 | 5 days | |
| MIR7L2212ACMEBXC | 12 | 7.2 | 22 | BXC | SIM****H7 | £34.85 | In Stock | |
| MIR8L3010ACMEBMK | 10 | 10 | 30 | BMK | SIM****H8 | £36.48 | 5 days | |
| MIR8L3010ACMEBXC | 10 | 10 | 30 | BXC | SIM****H8 | £43.95 | 5 days | |
| MIR10L525ACMEK20 | 5 | 20 | 52 | K20 | SIM****H10 | £45.28 | 5 days | |
| MIR10L358ACMEK20 | 8 | 12.5 | 35 | K20 | SIM****H10 | £37.40 | 5 days | |
| MIR6L2014ACMEK20 | 14 | 6 | 20 | K20 | SIM****H6 | £28.40 | 5 days | |
| MIR4L1516ACMEK20 | 16 | 4.6 | 15 | K20 | SIM****H4 | £21.98 | 5 days | |
| MIR7L2212ACMEK20 | 12 | 7.2 | 22 | K20 | SIM****H7 | £27.98 | 5 days | |
| MIR8L3010ACMEK20 | 10 | 10 | 30 | K20 | SIM****H8 | £41.80 | 5 days | |
| MIR8L3010ACMETNX | 10 | 10 | 30 | TNX | SIM****H8 | £44.58 | 5 days | |
| MIL10L358ACMEBMK | 8 | 12.5 | 35 | BMK | SIM****H10 | £43.35 | 5 days | |
| MIL10L358ACMEBXC | 8 | 12.5 | 35 | BXC | SIM****H10 | £46.58 | 5 days | |
| MIL10L358ACMEK20 | 8 | 12.5 | 35 | K20 | SIM****H10 | £44.25 | 5 days | |
| MIL10L456ACMEBXC | 6 | 14.6 | 45 | BXC | SIM****H10 | £51.28 | 5 days | |
| MIL10L525ACMEBMK | 5 | 20 | 52 | BMK | SIM****H10 | £52.40 | 5 days | |
| MIL10L525ACMEBXC | 5 | 20 | 52 | BXC | SIM****H10 | £56.38 | 5 days | |
| MIL10L525ACMEK20 Viewing | 5 | 20 | 52 | K20 | SIM****H10 | £45.28 | 5 days | |
| MIL4L1516ACMEBMK | 16 | 4.6 | 15 | BMK | SIM****H4 | £25.48 | 5 days | |
| MIL4L1516ACMEBXC | 16 | 4.6 | 15 | BXC | SIM****H4 | £27.35 | 5 days | |
| MIL4L1516ACMEK20 | 16 | 4.6 | 15 | K20 | SIM****H4 | £21.98 | 5 days | |
| MIL6L2014ACMEBMK | 14 | 6 | 20 | BMK | SIM****H6 | £27.75 | 5 days | |
| MIL6L2014ACMEBXC | 14 | 6 | 20 | BXC | SIM****H6 | £29.85 | 5 days | |
| MIL6L2014ACMEK20 | 14 | 6 | 20 | K20 | SIM****H6 | £23.95 | 5 days | |
| MIL7L2212ACMEBMK | 12 | 7.2 | 22 | BMK | SIM****H7 | £32.43 | 5 days | |
| MIL7L2212ACMEBXC | 12 | 7.2 | 22 | BXC | SIM****H7 | £34.85 | 5 days | |
| MIL7L2212ACMEK20 | 12 | 7.2 | 22 | K20 | SIM****H7 | £27.98 | 5 days | |
| MIL8L3010ACMEBMK | 10 | 10 | 30 | BMK | SIM****H8 | £30.83 | 5 days | |
| MIL8L3010ACMEBXC | 10 | 10 | 30 | BXC | SIM****H8 | £43.95 | 5 days | |
| MIL8L3010ACMEK20 | 10 | 10 | 30 | K20 | SIM****H8 | £35.30 | 5 days | |
| MIL8L3010ACMETNX | 10 | 10 | 30 | TNX | SIM****H8 | £44.58 | 5 days |
No products match your filters.
