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

16EL28WBMA - Carmex Thread Turning External Insert - W (BSW BSF BSP BSB) - Left Hand

SKU:16EL28WBMA

Carmex Thread Turning External Insert - W (16EL28WBMA) is a left-hand external-thread turning insert featuring a sturdy triangular laydown geometry. It’s designed to cover a wide range of thread ... Read more ↓
P
M
K
S
H
Thread TypeExternal
Thread DirectionLeft Hand
Thread FormW (BSW BSF BSP BSB)
Pitch28
View all specifications ↓
Download Cutting Data
£7.29
per item · pack of 5
Prices shown ex. VAT
In Stock— only 5 left
Sold in packs of 5
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

Carmex Thread Turning External Insert - W (16EL28WBMA) is a left-hand external-thread turning insert featuring a sturdy triangular laydown geometry. It’s designed to cover a wide range of thread standards (BSW, BSF, BSP, BSB), making it a versatile choice for machinists, engineers, and technicians who need reliable threading performance without swapping tools.

From basic threading tasks to the most demanding applications, this insert delivers stable cutting action and consistent thread profiles across a variety of materials, helping you finish jobs faster with fewer passes and less rework.

  • Broad thread-standard compatibility: Works with BSW, BSF, BSP, and BSB external thread standards for fewer tool changes and quicker setups.
  • Left-hand external threading geometry: Optimized for left-handed threads, delivering clean, accurate profiles with minimal passes.
  • Triangular laydown design for stability: The laydown geometry provides stable cutting action and predictable chip formation across a range of threading tasks.

With this insert, you gain a flexible, reliable threading solution that simplifies setup, reduces downtime, and supports consistent results across multiple thread standards and applications. Its robust performance helps you accelerate production, improve first-pass accuracy, and maintain a steady workflow from setup to completion.

Part Numbers

Protool Part Number
16EL28WBMA
Brand
Carmex
Category
Thread Turning
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.

Complete Your Project

Tooling and consumables that work with this product.
All 10 →