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Carmex Carbide Tiny Tool - Full Radius Grooving - MKL - BMK Grade - 4.1mm Minimum Diameter x 1mm Groove Width - 10mm Reach (Left Hand)

Carmex Carbide Tiny Tool - Full Radius Grooving - MKL - BMK Grade - 4.1mm Minimum Diameter x 1mm Groove Width - 10mm Reach (Left Hand)

SKU:MKL4R0.5L10BMK

The Carmex Carbide Tiny Tool is a compact, solid carbide bar engineered for full-radius grooving and reliable turning in tight spaces. It's designed for engineers, machinists, and hobbyists who n... Read more ↓
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ApplicationFull Radius Grooving (MKL)
Minimum Diameter4.1
Groove Width (W)1
Groove Depth (H)1
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£26.93
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 reliable turning in tight spaces. It's designed for engineers, machinists, and hobbyists who need precise grooves without sacrificing speed or setup time.

With a 4.1 mm minimum diameter, a 1 mm groove width, and a 10 mm reach in a left-hand orientation, this tool can access challenging pockets and deliver consistent groove profiles. Two coating options—BXC PVD TiN for low-cutting-speed stainless steels, and BMK's sub-micron grade with triple coating for high-heat performance—provide flexibility across materials and cutting conditions.

  • Coating options tailored to your material and speed: Choose BXC PVD TiN for low-speed stainless steel grooving, or BMK's sub-micron, triple-coated grade for high-heat performance across a broad material range.
  • Precise geometry for reliable full-radius grooves: With a 4.1 mm minimum diameter, 1 mm groove width, and 10 mm reach in a left-hand orientation, it delivers consistent groove profiles in tight features.
  • Durable carbide with heat resistance: Advanced coatings and BMK grade provide smooth cutting, reduced wear, and longer tool life even under demanding temperatures and materials.

This tool helps you finish jobs faster with repeatable grooves and clean finishes, while reducing tool changes and setup time. Its left-hand reach and compact geometry make it easier to reach awkward features, and the dual coating options ensure reliable performance from stainless steels to diverse materials. Count on consistent results, minimized chatter, and a dependable edge you can trust in everyday turning of small-diameter grooves.

Part Numbers

Protool Part Number
MKL4R0.5L10BMK
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 MKL4R0.5L10BMK. 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 7.112.522BMKSIM****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 Viewing4.11110BMKSIM****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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