Halesowen-based Sandvik Coromant (www.sandvik.coromant.com) has introduced the CoroThread 266 thread-turning tool, which features precision over- and under-coolant delivery.

The use of over-coolant improves chip formation for more-secure machining, while under-coolant controls temperature for extended and repeatable tool life. Precision coolant delivery also has positive effects on surface finish.

CoroThread 266 makes use of the company’s proprietary iLock interface between the holder and insert, which prevents cutting forces from causing micro-movements of the insert in the tip seat.

In addition, for applications where long overhangs are unavoidable, the use of dedicated damped Silent Tools adaptors provides a way to reduce vibration and maintain precision.

 Suitable for external and internal thread turning, a standard assortment of insert thread profiles with dedicated grades and geometries is available for all materials. Bespoke profiles can be provided on request.

Quick-change tool-holders with precision coolant include Coromant Capto C3, C4, C5 and C6 (for use with 16mm inserts), as well as QS shanks in 20 x 20 and 25 x 25mm sizes (for 16 and 22mm inserts).

For internal thread turning, a minimum hole diameter of 20mm is required.