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Carmex Carbide Tiny Tool - Thread Relief, Chamfering & Grooving - MDL - BXC Grade - 4.1mm Minimum Diameter x 0.8mm Reach x R0.5 (Left Hand)

Carmex Carbide Tiny Tool - Thread Relief, Chamfering & Grooving - MDL - BXC Grade - 4.1mm Minimum Diameter x 0.8mm Reach x R0.5 (Left Hand)

SKU:MDL4R0.5L18BXC

The Carmex Carbide Tiny Tool (MDL, BXC Grade) is a compact cutting solution designed for precise thread relief, chamfering, and grooving on small parts. With a minimum diameter of 4.1 mm, a reach ... Read more ↓
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ApplicationThread Relief Chamfering & Grooving (MDL)
Groove Depth (L1)18
Minimum Diameter4.1
Reach (H)0.8
Radius (R)0.5
L51
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£23.73
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5 days estimated lead time — subject to availability
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Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

The Carmex Carbide Tiny Tool (MDL, BXC Grade) is a compact cutting solution designed for precise thread relief, chamfering, and grooving on small parts. With a minimum diameter of 4.1 mm, a reach of 0.8 mm, and a left-hand R0.5 corner radius, this tool is optimized for tight spaces and fine-detail work. Crafted from premium carbide, it delivers edge reliability and long wear life, making it ideal for starting threads, forming chamfers, and defining grooves on small components.

  • Tiny, precise geometry for micro-work: This tool’s compact profile (4.1 mm minimum diameter, 0.8 mm reach) and R0.5 left-hand edge let you start and complete thread relief, chamfers, and grooves in tight spaces with consistent, clean results.
  • Premium carbide for durability and longevity: Made from hard, wear-resistant carbide to withstand repeated use and maintain sharpness across materials, reducing tool changes and downtime.
  • Left-hand threading compatibility and MDL/BXC grade design: Optimized for left-handed threading tasks and reliable finishes, backed by the proven MDL/BXC formulation for stable performance in demanding materials.

With the Carmex Tiny Tool, you can tackle small-thread relief, chamfering, and grooving tasks in a single pass, improving workflow efficiency and part quality. Its compact footprint fits cramped setups, while the carbide construction delivers dependable performance across materials, helping you reduce tool changes, minimize scrap, and achieve repeatable, professional finishes on every part.

Application Thread Relief Chamfering & Grooving (MDL)
Groove Depth (L1) 18
Minimum Diameter 4.1
Reach (H) 0.8
Radius (R) 0.5
L 51
B 1.5
F 1.8
D 4.0
Grade BXC
Holder SIM****H4

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.

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Staff are very helpful and interested in providing a good service making us the customer feel valued.
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honest about stock and prices are competitive.
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Staff are very helpful and polite.Goods that were in stock were dispatched same day and back orders were quick in coming through .
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Buying experience
Phone requests are handled quickly and without any fuss. The website is easy to use and straightforward to order from. It’s especially helpful that it shows real‑time availability, so we don’t need to call to confirm whether parts will arrive.
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Full Range: Carmex Carbide Tiny Tools - Thread Relief, Chamfering & Grooving - Grade BXC (MDR)

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You are viewing MDL4R0.5L18BXC. Click any other SKU to view its full details.

Product SKUGroove DepthMinimum DiameterReachRadiusGradeHolderPriceStock Order
MDR4R0.5L18BXC 184.10.80.5BXCSIM****H4£23.73 In Stock
MDR5R0.5L24BXC 245.11.20.5BXCSIM****H5£27.60 In Stock
MDR6R0.5L27BXC 276.11.40.5BXCSIM****H6£32.38 In Stock
MDL4R0.5L18BXC Viewing184.10.80.5BXCSIM****H4£23.73 5 days
MDL5R0.5L24BXC 245.11.20.5BXCSIM****H5£27.60 5 days
MDL6R0.5L27BXC 276.11.40.5BXCSIM****H6£32.38 5 days

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