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Carmex Thread Turning Internal Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand - 16IR24UNBMA

Carmex Thread Turning Internal Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand - 16IR24UNBMA

SKU:16IR24UNBMA

The Carmex Thread Turning Internal Insert is a right-hand, internal threading tool designed to form precise threads in UN standards (UNC, UNF, UNEF, UNS). Part of Carmex’s industry-leading range ... Read more ↓
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Thread TypeInternal
Thread DirectionRight Hand
Thread FormUN (UNC UNF UNEF UNS)
Pitch24
Insert Size16
GradeBMA
Download Cutting Data
£8.44
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The Carmex Thread Turning Internal Insert is a right-hand, internal threading tool designed to form precise threads in UN standards (UNC, UNF, UNEF, UNS). Part of Carmex’s industry-leading range of thread turning inserts, this laydown triangular insert provides broad coverage for today’s UN thread standards and is suitable for a wide range of applications—from simple repairs to more demanding manufacturing tasks. It’s a versatile choice for engineers, machinists, buyers, tradespeople, and hobbyists who need dependable internal threading performance.

  • Wide UN-thread compatibility: Designed to handle UNC, UNF, UNEF, and UNS threads with a single insert, reducing tool changes and simplifying stocking while delivering consistent thread formation across common UN standards.
  • Triangular laydown geometry for stability: The laydown triangular design promotes a stable, steady cutting action, helping to maintain dimensional accuracy, minimize chatter, and extend insert life across diverse materials.
  • Right-hand orientation for reliable performance: Specifically configured for right-hand UN threads, enabling easy setup and dependable results from basic tasks to more demanding threading work.

This insert helps streamline internal threading workflows by covering multiple UN thread standards with one tool, reducing downtime and inventory complexity. Its durable design and geometry support repeatable, high-quality thread production, delivering consistent results that you can rely on across a variety of materials and run conditions. Ideal for production environments and hands-on workshops alike, it supports efficient operations and confidence in every finished part.

Thread Type Internal
Thread Direction Right Hand
Thread Form UN (UNC UNF UNEF UNS)
Pitch 24
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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Staff are very helpful and interested in providing a good service making us the customer feel valued.
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Staff are very helpful and polite.Goods that were in stock were dispatched same day and back orders were quick in coming through .
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Buying experience
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 - Unified - Right/Left Hand

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You are viewing 16IR24UNBMA. Click any other SKU to view its full details.

Product SKUThread TypeThread DirectionThread FormPitchInsert SizeGradePriceStock Order
06IL18UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)186BMA£9.43 5 days
06IL18UNBXC InternalLeft HandUN (UNC UNF UNEF UNS)186BXC£11.10 5 days
06IL18WBMA InternalLeft HandW (BSW BSF BSP BSB)186BMA£9.43 5 days
06IL20UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)206BMA£9.43 In Stock
06IL20UNBXC InternalLeft HandUN (UNC UNF UNEF UNS)206BXC£11.10 In Stock
06IL20WBMA InternalLeft HandW (BSW BSF BSP BSB)206BMA£9.43 5 days
06IL22WBMA InternalLeft HandW (BSW BSF BSP BSB)226BMA£9.43 5 days
06IL24UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)246BMA£11.14 5 days
06IL24UNBXC InternalLeft HandUN (UNC UNF UNEF UNS)246BXC£11.10 5 days
06IL28UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)286BMA£9.43 5 days
06IL28UNBXC InternalLeft HandUN (UNC UNF UNEF UNS)286BXC£11.10 5 days
06IL32UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)326BMA£11.14 In Stock
06IL32UNBXC InternalLeft HandUN (UNC UNF UNEF UNS)326BXC£11.10 5 days
06IR18UNBMA InternalRight HandUN (UNC UNF UNEF UNS)186BMA£9.28 In Stock
06IR18UNBXC InternalRight HandUN (UNC UNF UNEF UNS)186BXC£9.28 In Stock
06IR20UNBMA InternalRight HandUN (UNC UNF UNEF UNS)206BMA£9.28 In Stock
06IR20UNBXC InternalRight HandUN (UNC UNF UNEF UNS)206BXC£9.28 5 days
06IR24UNBMA InternalRight HandUN (UNC UNF UNEF UNS)246BMA£9.28 5 days
06IR28UNBMA InternalRight HandUN (UNC UNF UNEF UNS)286BMA£9.28 In Stock
06IR32UNBMA InternalRight HandUN (UNC UNF UNEF UNS)326BMA£9.28 In Stock
08IL14UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)148BMA£11.10 5 days
08IL16UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)168BMA£9.43 5 days
08IL18UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)188BMA£11.10 5 days
08IL20UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)208BMA£11.10 5 days
08IL24UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)248BMA£11.10 5 days
08IL28UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)288BMA£11.10 5 days
08IL32UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)328BMA£11.10 5 days
08IR13UNBMA InternalRight HandUN (UNC UNF UNEF UNS)138BMA£9.28 In Stock
08IR14UNBMA InternalRight HandUN (UNC UNF UNEF UNS)148BMA£9.28 In Stock
08IR16UNBMA InternalRight HandUN (UNC UNF UNEF UNS)168BMA£9.28 5 days
08IR18UNBMA InternalRight HandUN (UNC UNF UNEF UNS)188BMA£9.28 In Stock
08IR20UNBMA InternalRight HandUN (UNC UNF UNEF UNS)208BMA£9.28 In Stock
08IR24UNBMA InternalRight HandUN (UNC UNF UNEF UNS)248BMA£9.28 5 days
08IR28UNBMA InternalRight HandUN (UNC UNF UNEF UNS)288BMA£9.28 5 days
08IR32UNBMA InternalRight HandUN (UNC UNF UNEF UNS)328BMA£9.28 5 days
11IL11UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)1111BMA£8.59 5 days
11IL12UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)1211BMA£8.59 5 days
11IL13UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)1311BMA£8.44 5 days
11IL14UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)1411BMA£8.59 5 days
11IL16UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)1611BMA£8.44 In Stock
11IL18UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)1811BMA£8.44 In Stock
11IL20UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)2011BMA£8.59 5 days
11IL24UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)2411BMA£8.59 In Stock
11IL27UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)2711BMA£8.59 5 days
11IL28UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)2811BMA£8.44 5 days
11IL32UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)3211BMA£8.59 5 days
11IL36UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)3611BMA£11.16 5 days
11IL40UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)4011BMA£11.16 5 days
11IL44UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)4411BMA£11.16 5 days
11IL48UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)4811BMA£11.16 5 days
11IL56UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)5611BMA£11.16 5 days
11IL64UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)6411BMA£11.16 5 days
11IL72UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)7211BMA£11.16 5 days
11IR11UNBMA InternalRight HandUN (UNC UNF UNEF UNS)1111BMA£8.44 5 days
11IR12UNBMA InternalRight HandUN (UNC UNF UNEF UNS)1211BMA£8.44 In Stock
11IR13UNBMA InternalRight HandUN (UNC UNF UNEF UNS)1311BMA£8.44 In Stock
11IR14UNBMA InternalRight HandUN (UNC UNF UNEF UNS)1411BMA£8.44 5 days
11IR16UNBMA InternalRight HandUN (UNC UNF UNEF UNS)1611BMA£8.44 In Stock
11IR18UNBMA InternalRight HandUN (UNC UNF UNEF UNS)1811BMA£8.44 5 days
11IR20UNBMA InternalRight HandUN (UNC UNF UNEF UNS)2011BMA£8.44 5 days
11IR24UNBMA InternalRight HandUN (UNC UNF UNEF UNS)2411BMA£8.44 In Stock
11IR27UNBMA InternalRight HandUN (UNC UNF UNEF UNS)2711BMA£8.44 In Stock
11IR28UNBMA InternalRight HandUN (UNC UNF UNEF UNS)2811BMA£8.44 In Stock
11IR32UNBMA InternalRight HandUN (UNC UNF UNEF UNS)3211BMA£8.44 In Stock
11IR36UNBMA InternalRight HandUN (UNC UNF UNEF UNS)3611BMA£10.94 In Stock
11IR40UNBMA InternalRight HandUN (UNC UNF UNEF UNS)4011BMA£8.44 In Stock
11IR44UNBMA InternalRight HandUN (UNC UNF UNEF UNS)4411BMA£11.16 5 days
11IR48UNBMA InternalRight HandUN (UNC UNF UNEF UNS)4811BMA£10.94 5 days
11IR56UNBMA InternalRight HandUN (UNC UNF UNEF UNS)5611BMA£11.16 5 days
11IR64UNBMA InternalRight HandUN (UNC UNF UNEF UNS)6411BMA£11.16 5 days
11IR72UNBMA InternalRight HandUN (UNC UNF UNEF UNS)7211BMA£11.16 5 days
16IL10UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)1016BMA£8.44 5 days
16IL11.5UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)11.516BMA£8.59 5 days
16IL11UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)1116BMA£8.44 5 days
16IL12UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)1216BMA£8.44 5 days
16IL13UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)1316BMA£8.44 5 days
16IL14UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)1416BMA£8.44 5 days
16IL16UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)1616BMA£8.44 5 days
16IL18UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)1816BMA£8.44 5 days
16IL20UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)2016BMA£8.44 5 days
16IL24UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)2416BMA£8.59 In Stock
16IL27UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)2716BMA£8.59 5 days
16IL28UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)2816BMA£8.59 5 days
16IL32UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)3216BMA£8.59 5 days
16IL36UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)3616BMA£11.16 5 days
16IL40UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)4016BMA£11.16 5 days
16IL44UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)4416BMA£11.16 5 days
16IL48UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)4816BMA£11.16 5 days
16IL56UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)5616BMA£11.16 5 days
16IL64UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)6416BMA£11.16 5 days
16IL72UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)7216BMA£11.16 5 days
16IL8UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)816BMA£8.44 In Stock
16IL9UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)916BMA£8.44 5 days
16IR10UNBMA InternalRight HandUN (UNC UNF UNEF UNS)1016BMA£8.44 In Stock
16IR11.5UNBMA InternalRight HandUN (UNC UNF UNEF UNS)11.516BMA£8.44 In Stock
16IR11UNBMA InternalRight HandUN (UNC UNF UNEF UNS)1116BMA£8.44 In Stock
16IR12UNBMA InternalRight HandUN (UNC UNF UNEF UNS)1216BMA£8.44 In Stock
16IR13UNBMA InternalRight HandUN (UNC UNF UNEF UNS)1316BMA£8.44 In Stock
16IR14UNBMA InternalRight HandUN (UNC UNF UNEF UNS)1416BMA£8.44 In Stock
16IR16UNBMA InternalRight HandUN (UNC UNF UNEF UNS)1616BMA£8.44 5 days
16IR18UNBMA InternalRight HandUN (UNC UNF UNEF UNS)1816BMA£8.44 In Stock
16IR20UNBMA InternalRight HandUN (UNC UNF UNEF UNS)2016BMA£8.44 In Stock
16IR24UNBMA ViewingInternalRight HandUN (UNC UNF UNEF UNS)2416BMA£8.44 In Stock
16IR27UNBMA InternalRight HandUN (UNC UNF UNEF UNS)2716BMA£8.44 In Stock
16IR28UNBMA InternalRight HandUN (UNC UNF UNEF UNS)2816BMA£8.44 In Stock
16IR32UNBMA InternalRight HandUN (UNC UNF UNEF UNS)3216BMA£8.44 In Stock
16IR36UNBMA InternalRight HandUN (UNC UNF UNEF UNS)3616BMA£10.94 In Stock
16IR40UNBMA InternalRight HandUN (UNC UNF UNEF UNS)4016BMA£10.94 In Stock
16IR44UNBMA InternalRight HandUN (UNC UNF UNEF UNS)4416BMA£10.94 5 days
16IR48UNBMA InternalRight HandUN (UNC UNF UNEF UNS)4816BMA£10.94 5 days
16IR56UNBMA InternalRight HandUN (UNC UNF UNEF UNS)5616BMA£10.94 5 days
16IR64UNBMA InternalRight HandUN (UNC UNF UNEF UNS)6416BMA£10.94 5 days
16IR72UNBMA InternalRight HandUN (UNC UNF UNEF UNS)7216BMA£10.94 5 days
16IR8UNBMA InternalRight HandUN (UNC UNF UNEF UNS)816BMA£8.44 In Stock
16IR9UNBMA InternalRight HandUN (UNC UNF UNEF UNS)916BMA£8.44 In Stock
22IL5UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)522BMA£12.59 5 days
22IL6UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)622BMA£12.59 5 days
22IL7UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)722BMA£12.59 5 days
22IR5UNBMA InternalRight HandUN (UNC UNF UNEF UNS)522BMA£12.38 5 days
22IR6UNBMA InternalRight HandUN (UNC UNF UNEF UNS)622BMA£12.38 In Stock
22IR7UNBMA InternalRight HandUN (UNC UNF UNEF UNS)722BMA£12.38 In Stock
27IL4.5UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)4.527BMA£17.79 5 days
27IL4UNBMA InternalLeft HandUN (UNC UNF UNEF UNS)427BMA£17.79 5 days
27IR4.5UNBMA InternalRight HandUN (UNC UNF UNEF UNS)4.527BMA£17.46 5 days
27IR4UNBMA InternalRight HandUN (UNC UNF UNEF UNS)427BMA£17.46 5 days

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