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Carmex Thread Mills Carbide Drill Mill - Metric - M5 x 0.8 - UnCoated

SKU:MTD0604B90.8ISOK20

The Carmex MT Drill Thread Mill is a compact, high-precision carbide tool designed to drill, chamfer, and thread mill ISO metric holes in a single pass. It’s ideal for high-volume production envi... Read more ↓
K
N
Thread FormMetric
SizeM5
Pitch0.8
Diameter (D)4.2
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£105.71
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
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

The Carmex MT Drill Thread Mill is a compact, high-precision carbide tool designed to drill, chamfer, and thread mill ISO metric holes in a single pass. It’s ideal for high-volume production environments where M5 x 0.8 threads appear regularly and cycle times matter.

  • Two-fluted design: A robust drill/thread milling cutter optimized for dependable chip formation and smooth cutting action.
  • 45° chamfer: Integrated chamfering angle to initiate threads cleanly and improve engagement from the first cut.
  • Single-pass hole-making: Combine drilling, chamfering, and thread milling in one operation to dramatically reduce cycle times and tool changes.
  • Internal coolant bore: Built-in coolant delivery supports controlled cooling and chip evacuation for stable cutting performance.
  • Right- and left-hand internal threads: The same tool accommodates both directions of internal threads, enhancing flexibility in production setups.
  • Blind and through holes: Versatile for both blind and through-hole applications without changing tooling.
  • MT7 Sub-Micron carbide grade (Uncoated): Sub-micron grade balanced for high hardness and toughness, offered in the uncoated variant to suit non‑ferrous metals, aluminum, and cast iron.
  • Metric size: Designed for M5 x 0.8 internal threads, aligning with common metric standards in precision assemblies.

In practice, this tool saves time and reduces variability by performing three hole-making operations in one pass, delivering superb thread surface quality and consistent results across parts. The uncoated MT7 carbide grade provides reliable cutting performance without the need for coatings, while the internal coolant bore supports durable cutting in a range of materials typical for precision components. This makes the Carmex MT Drill Thread Mill a dependable choice for streamlined, high-volume threading work.

Part Numbers

Protool Part Number
MTD0604B90.8ISOK20
Brand
Carmex
Category
Thread Mill
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 Thread Mills - MT Drill ISO (MTD)

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You are viewing MTD0604B90.8ISOK20. Click any other SKU to view its full details.

Product SKUSizePitchFlute LengthReachShank DiameterOverall LengthPriceStock Order
MTD06032B70.7ISOK20 M40.79.89.8654£105.71 5 days
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MTD0604B90.8ISOMT7 M50.811.911.9654£116.16 5 days
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MTD08048B121.0ISOMT7 M6114.814.8862£137.33 5 days
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MTD10064B151.25ISOMT7 M81.2518.718.71074£166.61 5 days
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MTD1208B191.5ISOMT7 M101.523.823.81280£211.52 5 days

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