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Carmex Carbide Tiny Tool - Full Radius Grooving - MKR - K20 Grade - 7.1mm Minimum Diameter x 1.5mm Groove Width - 22mm Reach

Carmex Carbide Tiny Tool - Full Radius Grooving - MKR - K20 Grade - 7.1mm Minimum Diameter x 1.5mm Groove Width - 22mm Reach

SKU:MKR7R0.75L22K20

The Carmex Carbide Tiny Tool is a precision solid carbide bar designed for full-radius grooving in tight spaces and reliable turning tasks. With a 7.1 mm minimum diameter and a 1.5 mm groove widt... Read more ↓
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ApplicationFull Radius Grooving (MKR)
Minimum Diameter7.1
Groove Width (W)1.5
Groove Depth (H)2.5
Reach (L1)22
L62
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£24.00
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5 days estimated lead time — subject to availability
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The Carmex Carbide Tiny Tool is a precision solid carbide bar designed for full-radius grooving in tight spaces and reliable turning tasks. With a 7.1 mm minimum diameter and a 1.5 mm groove width, it delivers clean, consistent grooves on small-diameter workpieces while maintaining a compact profile for crowded setups. Built around the MKR-K20 Grade, this tool is ready for precision work across a range of materials.

This tool is available in two high-performance PVD-coated grades to match your application. The BXC grade uses TiN coating for stable cutting at lower speeds and pairs well with a wide range of stainless steels. The BMK grade features a sub-micron core with a triple PVD coating for exceptional heat resistance and smooth cutting, delivering reliable performance across many materials. Whether you’re grooving tight radii or performing general turning, this tiny tool is engineered for consistent results.

  • Full-radius grooving and turning versatility: Specifically engineered for full-radius grooves, it also handles general turning, helping you complete more work without swapping tools or retooling.
  • Two high-performance PVD-coated grades: BXC for low-speed stainless steel work and BMK for high heat resistance and smooth cutting, enabling reliable tool life across a broad material range.
  • Compact geometry with long reach: 7.1 mm minimum diameter, 1.5 mm groove width, and 22 mm reach let you access tight pockets while maintaining precise groove geometry.

Designed to deliver consistent results and long-term reliability, this Carmex Tiny Tool helps you streamline setups, reduce downtime, and achieve solid finishes on small-diameter parts. It’s a dependable choice for engineers, machinists, and hobbyists who demand accuracy and repeatable performance in a compact tool.

Application Full Radius Grooving (MKR)
Minimum Diameter 7.1
Groove Width (W) 1.5
Groove Depth (H) 2.5
Reach (L1) 22
L 62
R 0.75
F 3.3
D 7.0
Grade K20
Holder SIM****H7

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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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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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 - Full Radius Grooving - Grade K20 (MKR)

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You are viewing MKR7R0.75L22K20. Click any other SKU to view its full details.

Product SKUMinimum DiameterGroove WidthGroove DepthReachGradeHolderPriceStock Order
MKR5R0.5L15K20 5.111.215K20SIM****H5£23.65 5 days
MKR6R0.5L15K20 6.111.615K20SIM****H6£24.20 5 days
MKR7R0.75L22K20 Viewing7.11.52.522K20SIM****H7£24.00 5 days
MKR5R0.75L15K20 5.11.51.215K20SIM****H5£23.65 5 days
MKR6R1.0L15K20 6.121.815K20SIM****H6£24.20 5 days
MKR6R0.75L15K20 6.11.51.615K20SIM****H6£24.20 5 days
MKR4R0.5L10K20 4.11110K20SIM****H4£23.18 5 days
MKR5R1.0L15K20 5.121.215K20SIM****H5£23.65 5 days
MKR7R1.0L22K20 7.122.522K20SIM****H7£28.43 5 days
MKR4R0.75L10K20 4.11.5110K20SIM****H4£23.18 5 days
MKR7R0.5L22K20 7.112.522K20SIM****H7£24.00 5 days
MKL4R0.5L10K20 4.11110K20SIM****H4£23.18 5 days
MKL4R0.75L10K20 4.11.5110K20SIM****H4£23.18 5 days
MKL5R0.5L15K20 5.111.215K20SIM****H5£23.65 5 days
MKL5R0.75L15K20 5.11.51.215K20SIM****H5£23.65 5 days
MKL5R1.0L15K20 5.121.215K20SIM****H5£23.65 5 days
MKL6R0.5L15K20 6.111.615K20SIM****H6£24.20 5 days
MKL6R0.75L15K20 6.11.51.615K20SIM****H6£23.18 5 days
MKL6R1.0L15K20 6.121.815K20SIM****H6£24.20 5 days
MKL7R0.5L22K20 7.112.522K20SIM****H7£23.98 5 days
MKL7R0.75L22K20 7.11.52.522K20SIM****H7£23.98 5 days
MKL7R1.0L22K20 7.122.522K20SIM****H7£23.98 5 days