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Carmex Thread Turning External Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand - 27ER4UNBMA

Carmex Thread Turning External Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand - 27ER4UNBMA

SKU:27ER4UNBMA

Carmex Thread Turning External Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand - 27ER4UNBMA is a precision external threading insert designed for right‑hand threads. It sits in Carmex’s industry‑lead... Read more ↓
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Thread TypeExternal
Thread DirectionRight Hand
Thread FormUN (UNC UNF UNEF UNS)
Pitch4
Insert Size27
GradeBMA
Download Cutting Data
£17.46
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In Stock— only 3 left
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Carmex Thread Turning External Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand - 27ER4UNBMA is a precision external threading insert designed for right‑hand threads. It sits in Carmex’s industry‑leading range of thread turning inserts and offers a versatile solution across the major thread standards used today.

These high‑quality laydown triangular inserts are engineered to cover the majority of thread standards available today and can handle a wide range of applications: from the basic, to the most demanding ones.

  • Broad UNC/UNF/UNEF/UNS compatibility: Designed to cover the major external thread standards (UNC, UNF, UNEF, UNS) for right‑hand threads, helping you select a single tool for multiple jobs.
  • Laydown triangular geometry: The triangular laydown design provides versatile engagement across thread forms, enabling reliable cutting across different standards with one insert.
  • Proven global quality: Part of an industry‑leading range recognized worldwide, this insert is manufactured to high standards to deliver dependable performance across basic and demanding applications.

This external thread turning insert helps streamline your threading workflow, delivering consistent thread forms and reliable results from simple tasks to demanding projects. With a single, versatile insert, you can simplify tool selection, reduce setup time, and approach UNC, UNF, UNEF, and UNS threading with confidence.

Thread Type External
Thread Direction Right Hand
Thread Form UN (UNC UNF UNEF UNS)
Pitch 4
Insert Size 27
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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Full Range: Carmex Thread Turning External Inserts - Unified - Right/Left Hand

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You are viewing 27ER4UNBMA. 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 ExternalLeft 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 ViewingExternalRight HandUN (UNC UNF UNEF UNS)427BMA£17.46 In Stock