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Carmex Carbide Tiny Tool - Full Radius Grooving - MKL - K20 Grade - 7.1mm Minimum Diameter x 1mm Groove Width - 22mm Reach (Left Hand)

Carmex Carbide Tiny Tool - Full Radius Grooving - MKL - K20 Grade - 7.1mm Minimum Diameter x 1mm Groove Width - 22mm Reach (Left Hand)

SKU:MKL7R0.5L22K20

The Carmex Carbide Tiny Tool is a compact solid carbide grooving tool designed to deliver precise full-radius grooves on small-diameter workpieces. It’s ideal for engineers, buyers, tradespeople,... Read more ↓
M
K
N
S
ApplicationFull Radius Grooving (MKL)
Minimum Diameter7.1
Groove Width (W)1
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

The Carmex Carbide Tiny Tool is a compact solid carbide grooving tool designed to deliver precise full-radius grooves on small-diameter workpieces. It’s ideal for engineers, buyers, tradespeople, hobbyists, and DIY makers who need reliable, repeatable grooves in tight spaces or during general turning tasks. This MKL tool features a K20 grade with a 7.1 mm minimum diameter and a 1 mm groove width, plus a 22 mm reach in a left-hand orientation. It’s offered in two high-performance coatings to suit different materials and speeds: BXC TiN for low cutting speeds on stainless steels and BMK with a sub-micron, triple PVD coating for enhanced heat resistance and smooth cutting across a wide range of materials.

  • Full-radius grooving at small diameters: Create precise, full-radius grooves starting at 7.1 mm diameter with a 1 mm groove width, ensuring clean, consistent profiles in tight spaces and during general turning.
  • Dual coating options for versatile performance: BXC TiN coating optimizes low-speed cutting on stainless steels (ISO P30-P50 / K25-K40), while BMK’s sub-micron, triple-PVD coating delivers exceptional heat resistance and smooth cutting across materials (ISO K10-K20).
  • Rigid, purpose-built geometry with practical reach: MKL form, left-hand orientation with a 22 mm reach provides stable cutting and easy access in confined setups, reducing setup time and improving overall reliability.

Designed for dependable, repeatable results, this tool helps you complete small-diameter grooving tasks faster with less risk of chatter or surface imperfections. The robust carbide core and optimized coatings minimize wear, extending tool life and delivering smooth, clean grooves across a range of materials, including stainless steels. Whether in a production cell or a one-off job, it supports consistent performance and confident, efficient machining.

Part Numbers

Protool Part Number
MKL7R0.5L22K20
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 MKL7R0.5L22K20. 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 Viewing7.112.522K20SIM****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

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