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Carmex Thread Mills Solid Carbide - With Through Coolant - Metric - M20 x 2.5 - MT7

SKU:MTB1615E482.5ISOMT7

Engineered for high-precision internal threading, Carmex's Solid Carbide Thread Mills with Through-Coolant deliver reliable, consistent threads in metric M20 x 2.5 holes. Designed for MT7 tooling... Read more ↓
P
M
K
N
S
Thread FormMetric
SizeM20
Pitch2.5
Diameter (D)15
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£259.88
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

Engineered for high-precision internal threading, Carmex's Solid Carbide Thread Mills with Through-Coolant deliver reliable, consistent threads in metric M20 x 2.5 holes. Designed for MT7 tooling systems, this tool combines carbide durability with efficient chip management for demanding machining environments.

  • Through-Coolant Bore: coolant is delivered through the bore to the cutting zone, promoting effective chip evacuation and cooler operation for deeper holes and tougher materials.
  • Solid Carbide Construction: premium carbide offers exceptional hardness and wear resistance, supporting precise thread profiles and longer tool life.
  • Metric Thread Size: specifically engineered for M20 x 2.5 internal threads, enabling accurate, repeatable thread geometry in metal parts.
  • MT7 Shank: compatible with standard MT7M/MT7 CNC holders, ensuring broad integration with common milling centers and setups.
  • Optimized Cutting Geometry: designed for stable thread milling performance, delivering clean thread starts, consistent pitch, and reduced burr formation.

This through-coolant thread mill is ideal for production runs and precision shops aiming to improve uptime, reduce rework, and achieve high-quality internal threads in metals ranging from alloys to tougher steels. By combining chip control with durable carbide, it helps you achieve reliable thread integrity, smoother finishes, and longer tool life in challenging drilling and milling applications.

Part Numbers

Protool Part Number
MTB1615E482.5ISOMT7
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 Solid Carbide Thread Mills - ISO Metric - With Through Coolant (MTB)

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