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Carmex Carbide Tiny Tool - Full Radius Grooving - MKL - K20 Grade - 7.1mm Minimum Diameter x 1.5mm Groove Width - 22mm Reach (Left Hand)

Carmex Carbide Tiny Tool - Full Radius Grooving - MKL - K20 Grade - 7.1mm Minimum Diameter x 1.5mm Groove Width - 22mm Reach (Left Hand)

SKU:MKL7R0.75L22K20

Carmex Carbide Tiny Tool is a compact, solid carbide bar designed for full-radius grooving and general turning. It’s ideal for machinists, engineers, and hobbyists who need precise grooves in tig... Read more ↓
M
K
N
S
ApplicationFull Radius Grooving (MKL)
Minimum Diameter7.1
Groove Width (W)1.5
Groove Depth (H)2.5
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£23.98
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

Carmex Carbide Tiny Tool is a compact, solid carbide bar designed for full-radius grooving and general turning. It’s ideal for machinists, engineers, and hobbyists who need precise grooves in tight spaces, delivering reliable performance across a range of stainless steels.

With MKL geometry and a 7.1 mm minimum diameter, 1.5 mm groove width, and 22 mm reach (left-hand), this tool is built to handle demanding grooving tasks. It’s available in coated grades to suit different cutting conditions: BXC (PVD TiN coated) for low cutting speeds on stainless steels (ISO P30-P50 / K25-K40) and BMK (sub-micron grade with advanced PVD triple coating) for extremely high heat resistance and smooth cutting (ISO K10-K20).

  • Full-radius grooving capability: Delivers clean, consistent full-radius grooves with stable cutting in confined spaces, reducing secondary passes and improving surface finish.
  • Coated carbide versatility for varying speeds and materials: Choose BXC TiN for dependable performance at lower speeds on stainless steels, or BMK’s sub-micron, triple-coated design for high-heat applications and smoother cutting across a wider material range (ISO P30-P50 / K25-K40 and ISO K10-K20).
  • Compact geometry with long reach: 7.1 mm minimum diameter, 1.5 mm groove width, and 22 mm reach in a left-hand configuration to access tight grooves and features while maintaining rigidity and predictable cutting.

In use, the Carmex Tiny Tool provides consistent results, minimizes downtime, and extends tool life thanks to carbide strength and coated reliability. The combination of full-radius capability, material-ready coatings, and a compact, long-reach design makes it a dependable choice for turning and grooving tasks in stainless steels and beyond, helping you finish parts to spec with confidence.

Part Numbers

Protool Part Number
MKL7R0.75L22K20
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 K20 (MKR)

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You are viewing MKL7R0.75L22K20. 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 7.11.52.522K20SIM****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 Viewing7.11.52.522K20SIM****H7£23.98 5 days
MKL7R1.0L22K20 7.122.522K20SIM****H7£23.98 5 days

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