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Carmex Thread Turning External Insert - UN (UNC,UNF,UNEF,UNS) - Left Hand - 16EL8UNBMA

Carmex Thread Turning External Insert - UN (UNC,UNF,UNEF,UNS) - Left Hand - 16EL8UNBMA

SKU:16EL8UNBMA

Carmex Thread Turning External Insert - UN (UNC, UNF, UNEF, UNS) - Left Hand is a precision tool designed for turning external threads. Built to cover multiple thread standards, it helps you stre... Read more ↓
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Thread TypeExternal
Thread DirectionLeft Hand
Thread FormUN (UNC UNF UNEF UNS)
Pitch8
Insert Size16
GradeBMA
Download Cutting Data
£8.44
Prices shown ex. VAT
5 days estimated lead time — subject to availability
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Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Carmex Thread Turning External Insert - UN (UNC, UNF, UNEF, UNS) - Left Hand is a precision tool designed for turning external threads. Built to cover multiple thread standards, it helps you streamline setups and keep production moving without constant tool changes.

Part of Carmex’s globally recognized, industry-leading range, these high-quality laydown triangular inserts are engineered to provide a solution for the majority of thread standards available today. They handle a wide range of applications—from basic threading tasks to the most demanding ones—delivering dependable, repeatable performance.

  • Broad thread compatibility across UNC/UNF/UNEF/UNS: Designed to cover external threads in multiple standards with a single insert, reducing tool changes and simplifying inventory.
  • Triangular laydown geometry for stable cutting: The laydown geometry supports stable engagement and consistent thread formation across a range of applications.
  • Left-hand threading capability: Optimized for left-hand threads, expanding setup flexibility and part compatibility without swapping inserts.

This external insert helps you streamline threading operations by covering diverse standards with one reliable tool. Its durable geometry delivers consistent results from simple to more demanding tasks, while the left-hand capability broadens your manufacturing options—improving workflow efficiency and reducing downtime across workshops and production environments.

Thread Type External
Thread Direction Left Hand
Thread Form UN (UNC UNF UNEF UNS)
Pitch 8
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 External Inserts - Unified - Right/Left Hand

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You are viewing 16EL8UNBMA. Click any other SKU to view its full details.

Product SKUThread TypeThread DirectionThread FormPitchInsert SizeGradePriceStock Order
16EL10UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)1016BMA£8.44 5 days
16EL11.5UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)11.516BMA£8.59 5 days
16EL11UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)1116BMA£8.44 5 days
16EL12UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)1216BMA£8.44 5 days
16EL13UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)1316BMA£8.44 5 days
16EL14UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)1416BMA£8.44 In Stock
16EL16UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)1616BMA£8.44 5 days
16EL18UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)1816BMA£8.44 In Stock
16EL20UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)2016BMA£8.44 5 days
16EL24UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)2416BMA£8.44 5 days
16EL27UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)2716BMA£8.59 5 days
16EL28UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)2816BMA£8.44 5 days
16EL32UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)3216BMA£8.44 5 days
16EL36UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)3616BMA£11.16 5 days
16EL40UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)4016BMA£11.16 5 days
16EL44UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)4416BMA£11.16 5 days
16EL48UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)4816BMA£11.16 5 days
16EL56UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)5616BMA£11.16 5 days
16EL64UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)6416BMA£11.16 5 days
16EL72UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)7216BMA£11.16 5 days
16EL8UNBMA ViewingExternalLeft HandUN (UNC UNF UNEF UNS)816BMA£8.44 5 days
16EL9UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)916BMA£8.44 5 days
16ER10UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)1016BMA£8.44 In Stock
16ER11.5UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)11.516BMA£8.44 In Stock
16ER11UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)1116BMA£8.44 In Stock
16ER12UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)1216BMA£8.44 In Stock
16ER13UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)1316BMA£8.44 5 days
16ER14UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)1416BMA£8.44 5 days
16ER16UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)1616BMA£8.44 5 days
16ER18UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)1816BMA£8.44 In Stock
16ER20UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)2016BMA£8.44 In Stock
16ER24UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)2416BMA£8.44 In Stock
16ER27UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)2716BMA£8.44 5 days
16ER28UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)2816BMA£8.44 In Stock
16ER32UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)3216BMA£8.44 5 days
16ER36UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)3616BMA£10.94 In Stock
16ER40UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)4016BMA£10.94 In Stock
16ER44UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)4416BMA£10.94 5 days
16ER48UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)4816BMA£10.94 In Stock
16ER56UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)5616BMA£10.94 In Stock
16ER64UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)6416BMA£10.94 In Stock
16ER72UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)7216BMA£10.94 In Stock
16ER8UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)816BMA£8.44 In Stock
16ER9UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)916BMA£8.44 5 days
22EL5UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)522BMA£12.59 5 days
22EL6UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)622BMA£12.59 5 days
22EL7UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)722BMA£12.59 5 days
22ER5UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)522BMA£12.38 In Stock
22ER6UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)622BMA£12.38 In Stock
22ER7UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)722BMA£12.38 In Stock
27EL4.5UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)4.527BMA£17.79 5 days
27EL4UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)427BMA£17.79 5 days
27ER4UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)427BMA£17.46 In Stock

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