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Carmex Carbide Tiny Tool - Deep Face Grooving - MVR - BMK Grade - 20mm Minimum Diameter x 4mm Groove Width x 43mm Groove Depth

SKU:MVR8B4.0L43BMK

Carmex Carbide Tiny Tool for Deep Face Grooving is a precision solid carbide tool designed specifically for deep face grooving tasks. It’s built for engineers, machinists, and hobbyists who need ... Read more ↓
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ApplicationDeep Face Grooving (MVR)
Minimum Diameter20
Groove Width (B)4
Groove Depth (L1)43
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£101.65
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
Klarna
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

Carmex Carbide Tiny Tool for Deep Face Grooving is a precision solid carbide tool designed specifically for deep face grooving tasks. It’s built for engineers, machinists, and hobbyists who need clean, consistent grooves across a range of materials. The tool features dimensions of a 20 mm minimum diameter, 4 mm groove width, and 43 mm groove depth, making it ideal for demanding, high-precision groove work. Note: This product line is designed for right‑hand operations and does not include left‑hand bars.

  • BMK Grade with PVD triple coating: Sub-micron carbide with an advanced PVD triple coating delivers exceptional heat resistance and smooth cutting, helping maintain edge life and consistent performance even on challenging materials.
  • Deep face grooving design: Specifically engineered for deep grooves, with stable geometry and a generous 43 mm depth to improve accuracy and reduce chatter during heavy cuts.
  • Wide material compatibility: Optimized for stainless steels and a range of other materials, providing reliable, repeatable results across common production workpieces.

This tool enables consistent, finish-quality grooves with fewer passes and reduced downtime. The heat‑resistant BMK coating helps preserve edge life in demanding operations, while its compact, purpose-built design simplifies setup in both manual and automated machining environments. Choose Carmex for dependable groove quality, predictable tool life, and confidence in every cut.

Part Numbers

Protool Part Number
MVR8B4.0L43BMK
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 - Deep Face Grooving - Grade BMK (MVR)

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You are viewing MVR8B4.0L43BMK. Click any other SKU to view its full details.

Product SKUMinimum DiameterGroove WidthGroove DepthRadiusGradeHolderPriceStock Order
MVR6B2.0L10BMK 102100.2BMKSIM****H6£62.20 5 days
MVR6B2.0L15BMK 122150.2BMKSIM****H6£62.23 5 days
MVR6B2.0L22BMK 122220.2BMKSIM****H6£66.58 In Stock
MVR6B2.5L15BMK 102.5150.2BMKSIM****H6£62.23 5 days
MVR6B2.5L22BMK 122.5220.2BMKSIM****H6£66.58 5 days
MVR6B3.0L22BMK 103220.2BMKSIM****H6£66.58 5 days
MVR8B3.0L27BMK 153270.2BMKSIM****H8£84.70 5 days
MVR8B3.0L43BMK 153430.2BMKSIM****H8£101.65 5 days
MVR8B4.0L43BMK Viewing204430.2BMKSIM****H8£101.65 5 days
MVL6B2.0L10BMK 102100.2BMKSIM****H6£51.08 5 days
MVL6B2.0L15BMK 122150.2BMKSIM****H6£62.23 5 days
MVL6B2.0L22BMK 122220.2BMKSIM****H6£56.28 5 days
MVL6B2.5L15BMK 102.5150.2BMKSIM****H6£52.60 5 days
MVL6B2.5L22BMK 122.5220.2BMKSIM****H6£56.28 5 days
MVL6B3.0L22BMK 103220.2BMKSIM****H6£56.28 5 days
MVL8B3.0L27BMK 153270.2BMKSIM****H8£71.60 5 days
MVL8B3.0L43BMK 153430.2BMKSIM****H8£85.93 5 days
MVL8B4.0L43BMK 204430.2BMKSIM****H8£101.65 5 days

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