Tungaloy has introduced BX330 CBN grade inserts for its TungThread thread turning tool series. The series offers a range of thread turning inserts and toolholders, covering applications TNGG Insert from general threading on CNC lathes and fine threading of precision parts machined Carbide Inserts on Swiss-type lathes to high-precision premium threads of OCTG pipe connections.

Two new BX330 grade inserts have been added to the series’ 60º partial profile threading insert line: 1QP-16ER60-014-SP and 1QP-16ER60-020-SP, both of which feature a brazed CBN tip.

Turning threads on hardened parts can be a challenge when using coated cemented carbide inserts, according to Tungaloy. The cutting edge can wear out quickly, leading to slower feed rates and less productivity. Of all Tungaloy CBN grades, the company says its BX330 provides the cutting edge with the most balanced combination of wear and fracture resistance. The grade is suitable for withstanding continuous and heavy cutting loads common in the thread turning method for hardened parts.

Featuring the standard 16ER laydown insert shape, the CBN threading inserts can be used with existing TungThread toolholders. With this addition, TungThread supports hard part threading applications with a wide range of standard toolholder sizes available for thread turning.

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