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Carmex Thread Turning Internal Insert - W (BSW BSF BSP BSB) - Right Hand - 16IR28WK20

16IR28WK20 - Carmex Thread Turning Internal Insert - W (BSW BSF BSP BSB) - Right Hand

SKU:16IR28WK20

Carmex Thread Turning Internal Insert – Right Hand – 16IR28WK20 is a precision internal threading insert designed for tough, real-world machining tasks. The compact, laydown triangular insert cov... Read more ↓
N
S
Thread TypeInternal
Thread DirectionRight Hand
Thread FormW (BSW BSF BSP BSB)
Pitch28
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Download Cutting Data
£7.74
per item · pack of 10
Prices shown ex. VAT
5 days estimated lead time — subject to availability
Sold in packs of 10
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.
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Speak to our team
01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

Carmex Thread Turning Internal Insert – Right Hand – 16IR28WK20 is a precision internal threading insert designed for tough, real-world machining tasks. The compact, laydown triangular insert covers the major thread standards—BSW, BSF, BSP, and BSB—allowing you to tackle a wide range of projects with a single versatile tool. It features a central bore for secure mounting, ensuring accurate, repeatable alignment as you cut.

  • Broad thread-standard compatibility: Designed to cover BSW, BSF, BSP, and BSB internal thread standards, reducing tool changes and simplifying inventory.
  • Triangular laydown geometry for stability and accuracy: The laydown form provides robust, stable engagement for smooth, consistent threads across a wide range of applications.
  • Right-hand orientation for easy integration: Configured for right-handed threads to align with common machining practices, making setup quick and predictable in both CNC and manual operations.

The Carmex Thread Turning Internal Insert delivers a reliable, versatile solution that helps you complete internal threads with confidence. Its broad compatibility and stable cutting geometry support faster cycles, fewer reworks, and consistent results across a variety of materials and production demands.

Part Numbers

Protool Part Number
16IR28WK20
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

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