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Carmex Carbide Tiny Tool - Thread Relief, Chamfering & Grooving - MDR - K20 Grade - 5.1mm Minimum Diameter x 1.2mm Reach x R0.5

Carmex Carbide Tiny Tool - Thread Relief, Chamfering & Grooving - MDR - K20 Grade - 5.1mm Minimum Diameter x 1.2mm Reach x R0.5

SKU:MDR5R0.5L24K20

The Carmex Carbide Tiny Tool is a compact, high-precision cutter designed for small-thread relief, chamfering, and grooving. Built for engineers, machinists, hobbyists, and shops that work on tiny... Read more ↓
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ApplicationThread Relief Chamfering & Grooving (MDR)
Groove Depth (L1)24
Minimum Diameter5.1
Reach (H)1.2
Radius (R)0.5
L51
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£26.23
Prices shown ex. VAT
5 days estimated lead time — subject to availability
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

The Carmex Carbide Tiny Tool is a compact, high-precision cutter designed for small-thread relief, chamfering, and grooving. Built for engineers, machinists, hobbyists, and shops that work on tiny parts, it delivers accurate cuts where space is limited. Crafted in K20-grade carbide and designated MDR, it offers durable performance for tight-diameter work. With a 5.1 mm minimum diameter capability, a 1.2 mm reach, and an R0.5 radius, this tool thrives in confined areas while maintaining edge quality.

  • Precise Tiny Thread Relief: Engineered geometry and K20 carbide deliver accurate thread relief on small features, helping you create clean, consistent threads on parts as small as 5.1 mm in diameter with minimal tool deflection.
  • All-in-One Chamfering & Grooving: This single tool handles both chamfers and grooves, reducing setup time and delivering reliable edge quality on tight-workpieces.
  • Durable, Long-Life Carbide: Premium-grade K20 carbide provides excellent wear resistance and strength, extending tool life in demanding materials and minimizing downtime.

By using the Carmex Tiny Tool, you streamline your small-geometry operations, achieve consistent finishes, and keep production moving in tight spaces. The compact design and precise reach enable you to reach recessed areas without sacrificing accuracy, while the durable carbide reduces maintenance and replacement needs. This makes it well-suited for precision manufacturing, prototype work, and rigorous small-part production, helping you improve throughput and overall results.

Application Thread Relief Chamfering & Grooving (MDR)
Groove Depth (L1) 24
Minimum Diameter 5.1
Reach (H) 1.2
Radius (R) 0.5
L 51
B 1.5
F 2.3
D 5.0
Grade K20
Holder SIM****H5

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.

★★★★★
Nice experience staff are very helpful and interested...
Staff are very helpful and interested in providing a good service making us the customer feel valued.
Bill
★★★★★
first place we look
honest about stock and prices are competitive.
Phil
★★★★★
Polite and helpful
Staff are very helpful and polite.Goods that were in stock were dispatched same day and back orders were quick in coming through .
Graham
★★★★★
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.
Jeremy

Full Range: Carmex Carbide Tiny Tools - Thread Relief, Chamfering & Grooving - Grade K20 (MDR)

View full collection →

You are viewing MDR5R0.5L24K20. Click any other SKU to view its full details.

Product SKUGroove DepthMinimum DiameterReachRadiusGradeHolderPriceStock Order
MDR6R0.5L27K20 276.11.40.5K20SIM****H6£30.73 5 days
MDR5R0.5L24K20 Viewing245.11.20.5K20SIM****H5£26.23 5 days
MDR4R0.5L18K20 184.10.80.5K20SIM****H4£22.48 5 days
MDL4R0.5L18K20 184.10.80.5K20SIM****H4£22.48 5 days
MDL5R0.5L24K20 245.11.20.5K20SIM****H5£26.23 5 days
MDL6R0.5L27K20 276.11.40.5K20SIM****H6£30.73 5 days

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