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Carmex Thread Turning Internal Insert - UNJ (UNJC UNJF UNJEF UNJS) - Right Hand - 16IR20UNJBMA

Carmex Thread Turning Internal Insert - UNJ (UNJC UNJF UNJEF UNJS) - Right Hand - 16IR20UNJBMA

SKU:16IR20UNJBMA

The Carmex Thread Turning Internal Insert for UNJ threads is a precision carbide insert engineered for internal threading on UNJ standards. Its laydown triangular geometry and right-hand orientat... Read more ↓
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Thread TypeInternal
Thread DirectionRight Hand
Thread FormUNJ (UNJC UNJF UNJEF UNJS)
Pitch20
Insert Size16
GradeBMA
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£10.72
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The Carmex Thread Turning Internal Insert for UNJ threads is a precision carbide insert engineered for internal threading on UNJ standards. Its laydown triangular geometry and right-hand orientation are designed to deliver reliable, repeatable results across UNJC, UNJF, UNJEF, and UNJS threads, covering a broad range of applications.

Part of our industry-leading range of thread turning inserts, this tool is recognized worldwide for its consistency and durability. It’s suitable for engineers, machinists, and hobbyists alike, handling simple to demanding threading tasks with a single, robust insert—the 16IR20UNJBMA configuration ensures compatibility with common setups.

  • Broad UNJ compatibility: Works with UNJC, UNJF, UNJEF, and UNJS internal threads in a right-hand configuration, reducing tool changes and expanding your capability to tackle a wide range of UNJ threading jobs.
  • Laydown triangular geometry for stable cutting: Provides a rigid cutting action, smooth chip flow, and consistent thread profiles, delivering a clean, professional finish across multiple materials.
  • Durable carbide insert for long tool life: Built to withstand demanding threading tasks with predictable wear, offering extended life, reliable performance, and less downtime.

This insert helps you streamline internal threading workflows by delivering consistent results with fewer tool changes, while maintaining tight tolerances and clean thread finishes. Its durable construction and versatile UNJ compatibility make it a dependable choice for production shops and job sites alike, enabling faster setup, reduced rework, and confidence that your threaded components will fit right the first time.

Thread Type Internal
Thread Direction Right Hand
Thread Form UNJ (UNJC UNJF UNJEF UNJS)
Pitch 20
Insert Size 16
Grade BMA

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.

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Phone requests are handled quickly and without any fuss. The website is easy to use and straightforward to order from. It’s especially helpful that it shows real‑time availability, so we don’t need to call to confirm whether parts will arrive.
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Full Range: Carmex Thread Turning Internal Inserts - UNJ - Right/Left Hand

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You are viewing 16IR20UNJBMA. Click any other SKU to view its full details.

Product SKUThread TypeThread DirectionThread FormPitchInsert SizeGradePriceStock Order
11IL14UNJBMA InternalLeft HandUNJ (UNJC UNJF UNJEF UNJS)1411BMA£10.90 5 days
11IL16UNJBMA InternalLeft HandUNJ (UNJC UNJF UNJEF UNJS)1611BMA£10.90 5 days
11IL18UNJBMA InternalLeft HandUNJ (UNJC UNJF UNJEF UNJS)1811BMA£10.72 5 days
11IL20UNJBMA InternalLeft HandUNJ (UNJC UNJF UNJEF UNJS)2011BMA£10.72 5 days
11IL24UNJBMA InternalLeft HandUNJ (UNJC UNJF UNJEF UNJS)2411BMA£10.90 5 days
11IL28UNJBMA InternalLeft HandUNJ (UNJC UNJF UNJEF UNJS)2811BMA£10.90 5 days
11IL32UNJBMA InternalLeft HandUNJ (UNJC UNJF UNJEF UNJS)3211BMA£10.90 5 days
11IL36UNJBMA InternalLeft HandUNJ (UNJC UNJF UNJEF UNJS)3611BMA£14.18 5 days
11IL40UNJBMA InternalLeft HandUNJ (UNJC UNJF UNJEF UNJS)4011BMA£14.18 5 days
11IL44UNJBMA InternalLeft HandUNJ (UNJC UNJF UNJEF UNJS)4411BMA£14.18 5 days
11IL48UNJBMA InternalLeft HandUNJ (UNJC UNJF UNJEF UNJS)4811BMA£14.18 5 days
11IR14UNJBMA InternalRight HandUNJ (UNJC UNJF UNJEF UNJS)1411BMA£10.72 In Stock
11IR16UNJBMA InternalRight HandUNJ (UNJC UNJF UNJEF UNJS)1611BMA£10.72 In Stock
11IR18UNJBMA InternalRight HandUNJ (UNJC UNJF UNJEF UNJS)1811BMA£10.72 In Stock
11IR20UNJBMA InternalRight HandUNJ (UNJC UNJF UNJEF UNJS)2011BMA£10.72 In Stock
11IR24UNJBMA InternalRight HandUNJ (UNJC UNJF UNJEF UNJS)2411BMA£10.72 In Stock
11IR28UNJBMA InternalRight HandUNJ (UNJC UNJF UNJEF UNJS)2811BMA£10.72 In Stock
11IR32UNJBMA InternalRight HandUNJ (UNJC UNJF UNJEF UNJS)3211BMA£10.72 In Stock
11IR36UNJBMA InternalRight HandUNJ (UNJC UNJF UNJEF UNJS)3611BMA£13.96 In Stock
11IR40UNJBMA InternalRight HandUNJ (UNJC UNJF UNJEF UNJS)4011BMA£13.96 In Stock
11IR44UNJBMA InternalRight HandUNJ (UNJC UNJF UNJEF UNJS)4411BMA£13.96 In Stock
11IR48UNJBMA InternalRight HandUNJ (UNJC UNJF UNJEF UNJS)4811BMA£13.96 In Stock
16IL10UNJBMA InternalLeft HandUNJ (UNJC UNJF UNJEF UNJS)1016BMA£10.90 5 days
16IL11UNJBMA InternalLeft HandUNJ (UNJC UNJF UNJEF UNJS)1116BMA£10.90 5 days
16IL12UNJBMA InternalLeft HandUNJ (UNJC UNJF UNJEF UNJS)1216BMA£10.72 5 days
16IL13UNJBMA InternalLeft HandUNJ (UNJC UNJF UNJEF UNJS)1316BMA£10.90 5 days
16IL14UNJBMA InternalLeft HandUNJ (UNJC UNJF UNJEF UNJS)1416BMA£10.90 5 days
16IL16UNJBMA InternalLeft HandUNJ (UNJC UNJF UNJEF UNJS)1616BMA£10.72 5 days
16IL18UNJBMA InternalLeft HandUNJ (UNJC UNJF UNJEF UNJS)1816BMA£10.72 5 days
16IL20UNJBMA InternalLeft HandUNJ (UNJC UNJF UNJEF UNJS)2016BMA£10.90 5 days
16IL24UNJBMA InternalLeft HandUNJ (UNJC UNJF UNJEF UNJS)2416BMA£10.90 5 days
16IL28UNJBMA InternalLeft HandUNJ (UNJC UNJF UNJEF UNJS)2816BMA£10.90 5 days
16IL32UNJBMA InternalLeft HandUNJ (UNJC UNJF UNJEF UNJS)3216BMA£10.90 5 days
16IL36UNJBMA InternalLeft HandUNJ (UNJC UNJF UNJEF UNJS)3616BMA£14.18 5 days
16IL40UNJBMA InternalLeft HandUNJ (UNJC UNJF UNJEF UNJS)4016BMA£14.18 5 days
16IL44UNJBMA InternalLeft HandUNJ (UNJC UNJF UNJEF UNJS)4416BMA£14.18 5 days
16IL48UNJBMA InternalLeft HandUNJ (UNJC UNJF UNJEF UNJS)4816BMA£14.18 5 days
16IL8UNJBMA InternalLeft HandUNJ (UNJC UNJF UNJEF UNJS)816BMA£10.72 5 days
16IL9UNJBMA InternalLeft HandUNJ (UNJC UNJF UNJEF UNJS)916BMA£10.90 5 days
16IR10UNJBMA InternalRight HandUNJ (UNJC UNJF UNJEF UNJS)1016BMA£10.90 5 days
16IR11UNJBMA InternalRight HandUNJ (UNJC UNJF UNJEF UNJS)1116BMA£10.90 5 days
16IR12UNJBMA InternalRight HandUNJ (UNJC UNJF UNJEF UNJS)1216BMA£10.72 In Stock
16IR13UNJBMA InternalRight HandUNJ (UNJC UNJF UNJEF UNJS)1316BMA£10.90 5 days
16IR14UNJBMA InternalRight HandUNJ (UNJC UNJF UNJEF UNJS)1416BMA£10.72 In Stock
16IR16UNJBMA InternalRight HandUNJ (UNJC UNJF UNJEF UNJS)1616BMA£10.72 In Stock
16IR18UNJBMA InternalRight HandUNJ (UNJC UNJF UNJEF UNJS)1816BMA£10.72 In Stock
16IR20UNJBMA ViewingInternalRight HandUNJ (UNJC UNJF UNJEF UNJS)2016BMA£10.72 In Stock
16IR24UNJBMA InternalRight HandUNJ (UNJC UNJF UNJEF UNJS)2416BMA£10.72 In Stock
16IR28UNJBMA InternalRight HandUNJ (UNJC UNJF UNJEF UNJS)2816BMA£10.72 In Stock
16IR32UNJBMA InternalRight HandUNJ (UNJC UNJF UNJEF UNJS)3216BMA£10.72 In Stock
16IR36UNJBMA InternalRight HandUNJ (UNJC UNJF UNJEF UNJS)3616BMA£13.96 In Stock
16IR40UNJBMA InternalRight HandUNJ (UNJC UNJF UNJEF UNJS)4016BMA£13.96 In Stock
16IR44UNJBMA InternalRight HandUNJ (UNJC UNJF UNJEF UNJS)4416BMA£13.96 In Stock
16IR48UNJBMA InternalRight HandUNJ (UNJC UNJF UNJEF UNJS)4816BMA£13.96 In Stock
16IR8UNJBMA InternalRight HandUNJ (UNJC UNJF UNJEF UNJS)816BMA£10.72 In Stock
16IR9UNJBMA InternalRight HandUNJ (UNJC UNJF UNJEF UNJS)916BMA£10.90 5 days

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