Please log in here to access all benefits, including promotional discounts and faster checkouts.

Carmex Thread Mills Solid Carbide - With Through Coolant - Whitworth BSW BSF - 5/16 x 18 - MT7

SKU:MTB06056C1618WMT7

Engineered for precision internal threading, the Carmex MTB solid carbide thread mill with through-coolant delivers reliable Whitworth BSW/BSF performance in a compact 5/16 x 18 size with MT7 shan... Read more ↓
P
M
K
N
S
Thread FormWhitworth BSW BSF
Size5/16
Pitch18
Diameter (D)5.6
View all specifications ↓
Download Cutting Data
£95.48
Prices shown ex. VAT
5 days estimated lead time — subject to availability
View Other Sizes →
Free delivery over £50 ex VAT
Secure checkout
14-day returns
30+ years expertise
Klarna
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
Learn more about Klarna
Speak to our team
01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

Engineered for precision internal threading, the Carmex MTB solid carbide thread mill with through-coolant delivers reliable Whitworth BSW/BSF performance in a compact 5/16 x 18 size with MT7 shank. Built for machinists who value clean threads, extended tool life, and efficient chip control, it represents a practical upgrade for productive workshop threading.

  • Through-Coolant Bore: Delivers coolant directly to the cutting edges, improving chip evacuation and helping maintain stable cutting temperatures.
  • Solid Carbide Construction: Provides rigidity and wear resistance for consistent thread forms and longer tool life under demanding milling conditions.
  • Whitworth Thread Forms: Precisely engineered for BSW and BSF standard threads, ensuring accurate engagement and reliable fit.
  • 5/16 x 18 Size with MT7 Shank: Compatible with common MT7 tool holders, delivering solid rigidity and repeatable performance in a range of machines.
  • Internal Thread Milling Capability: Specifically designed to create clean, accurate internal threads in metal parts with a single setup, reducing secondary operations.
  • MTB Line Innovation: Builds on Carmex MT technology by integrating through-bore cooling to enhance lifespan and reduce downtime in high-production environments.

By enabling coolant to reach the cutting zone and actively flushing chips away, this thread mill helps you achieve consistent thread quality, tighter tolerances, and longer tool life. It’s an efficient, dependable choice for manufacturing threads in Whitworth standards, ideal for fasteners, housings, and components where robust internal threads are critical.

Part Numbers

Protool Part Number
MTB06056C1618WMT7
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 - Whitworth - With Through Coolant (MTB)

View full collection →

You are viewing MTB06056C1618WMT7. Click any other SKU to view its full details.

Product SKUSizePitchFlute LengthReachShank DiameterOverall LengthPriceStock Order
MTB06046C1320WMT7 1/42013.313.3658£95.48 5 days
MTB06056C1618WMT7 Viewing5/161816.216.2658£95.48 5 days
MTB08076D1920WMT7 3/82019.719.7864£127.18 5 days
MTB0807D1916WMT7 3/81619.819.8864£127.18 5 days
MTB0808D2214WMT7 7/161422.722.7864£127.18 5 days
MTB10088D2318WMT7 7/161823.323.31073£146.70 5 days
MTB1009D2612WMT7 1/2 - 9/16 3/4 - 13/161226.526.51073£146.70 5 days
MTB1010E2616WMT7 1/2 - 9/161626.126.11073£146.70 5 days
MTB12118E3311WMT7 5/8 7/81133.533.51284£183.59 5 days
MTB14128E3114WMT7 5/8 - 11/161431.831.81483£204.20 5 days
MTB1616E439WMT7 Standard + CoolantWhitworth BSW BSF7/8 1 1/8943.743.7£259.88 5 days

Other sizes in this range

with tools we think you'll like
All 11 →