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Carmex Carbide Tiny Tool - Full Radius Grooving - MKR - BMK Grade - 7.1mm Minimum Diameter x 1mm Groove Width - 22mm Reach

SKU:MKR7R0.5L22BMK

The Carmex Carbide Tiny Tool is a compact, solid carbide bar engineered for full-radius grooving and general turning on small to mid-size parts. With a 7.1 mm minimum diameter and a 1 mm groove w... Read more ↓
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ApplicationFull Radius Grooving (MKR)
Minimum Diameter7.1
Groove Width (W)1
Groove Depth (H)2.5
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£32.85
Prices shown ex. VAT
5 days estimated lead time — subject to availability
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Free delivery over £50 ex VAT
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14-day returns
30+ years expertise
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

The Carmex Carbide Tiny Tool is a compact, solid carbide bar engineered for full-radius grooving and general turning on small to mid-size parts. With a 7.1 mm minimum diameter and a 1 mm groove width, it delivers precise, repeatable groove profiles in tight spaces. Its 22 mm reach lets you access deeper features without repositioning the workpiece, making it ideal for precision machinists, shops, and hobbyists who demand clean grooves and reliable performance.

The tool features two coating grades for versatility and efficiency. The BXC grade uses a PVD TiN coating optimized for low cutting speeds and stainless steels (ISO P30-P50 / K25-K40). The BMK grade employs a sub-micron structure with an advanced PVD triple coating, delivering extremely high heat resistance and smooth cutting for general-purpose use across materials.

  • Precise full-radius grooving in a compact form: Geometry supports full-radius groove profiles on small parts with a 7.1 mm minimum diameter and 1 mm groove width, while a 22 mm reach enables access to deeper features without reworking setup.
  • Two coating grades for versatility and efficiency: BXC TiN coating optimized for low-speed cuts on stainless steels; BMK triple-coated, sub-micron grade provides high heat resistance for broader, general-purpose use across materials.
  • Durable carbide construction for long life and consistent results: Solid carbide body delivers reliable performance in demanding grooving and turning tasks with smooth cutting and predictable wear patterns.

With its precise geometry, dual coating options, and rugged carbide construction, the Carmex Tiny Tool helps you complete tight-radius grooves quickly and accurately, reduces setup time, and sustains clean finishes across stainless steels and other materials. The 22 mm reach minimizes tool changes for deeper features, while the BMK grade’s high-heat performance keeps cutting stable under load. In short, you gain reliable results, improved workflow, and greater confidence in every pass.

Part Numbers

Protool Part Number
MKR7R0.5L22BMK
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.

Ask our technical team about this tool

Not sure if this is the right tool for your job? Ask us about speeds and feeds, material suitability, holders or alternatives — 30+ years of machining experience on the other end.

Prefer to talk? Call 01732 887334 — Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

Full Range: Carmex Carbide Tiny Tools - Full Radius Grooving - Grade BMK (MKR)

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You are viewing MKR7R0.5L22BMK. Click any other SKU to view its full details.

Product SKUMinimum DiameterGroove WidthGroove DepthReachGradeHolderPriceStock Order
MKR4R0.5L10BMK 4.11110BMKSIM****H4£26.93 5 days
MKR4R0.75L10BMK 4.11.5110BMKSIM****H4£26.93 5 days
MKR5R0.5L15BMK 5.111.215BMKSIM****H5£27.35 5 days
MKR5R0.75L15BMK 5.11.51.215BMKSIM****H5£27.35 5 days
MKR5R1.0L15BMK 5.121.215BMKSIM****H5£27.35 5 days
MKR6R0.5L15BMK 6.111.615BMKSIM****H6£28.00 5 days
MKR6R0.75L15BMK 6.11.51.615BMKSIM****H6£28.00 In Stock
MKR6R1.0L15BMK 6.121.815BMKSIM****H6£28.00 In Stock
MKR7R0.5L22BMK Viewing7.112.522BMKSIM****H7£32.85 5 days
MKR7R0.75L22BMK 7.11.52.522BMKSIM****H7£32.85 5 days
MKR7R1.0L22BMK 7.122.522BMKSIM****H7£32.85 5 days
MKL4R0.5L10BMK 4.11110BMKSIM****H4£26.93 5 days
MKL4R0.75L10BMK 4.11.5110BMKSIM****H4£26.93 5 days
MKL5R0.5L15BMK 5.111.215BMKSIM****H5£27.35 5 days
MKL5R0.75L15BMK 5.11.51.215BMKSIM****H5£27.35 5 days
MKL5R1.0L15BMK 5.121.215BMKSIM****H5£27.35 5 days
MKL6R0.5L15BMK 6.111.615BMKSIM****H6£28.00 5 days
MKL6R0.75L15BMK 6.11.51.615BMKSIM****H6£26.93 5 days
MKL6R1.0L15BMK 6.121.815BMKSIM****H6£28.00 5 days
MKL7R0.5L22BMK 7.112.522BMKSIM****H7£32.85 5 days
MKL7R0.75L22BMK 7.11.52.522BMKSIM****H7£27.78 5 days
MKL7R1.0L22BMK 7.122.522BMKSIM****H7£32.85 5 days

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