Hertel H08703191 Laydown Threading Insert 22ERN60 HG330TR

Product Description

The HERTEL H08703191 is a solid carbide laydown threading insert designed for external thread cutting operations. Carrying the 22ER insert style designation, this insert produces a partial profile 60-degree thread form and is intended for right-hand external threading applications. The insert is finished with a TiC/TiN multilayer coating to improve wear resistance and extend tool life in production threading environments. With a 0.5 inch inscribed circle and a thickness of 0.187 inches, this insert seats in compatible 22ER-style toolholders. It is sold individually, with a minimum order quantity of 10 units. Machinists and toolroom professionals working with threaded components rely on inserts like this for repeatable, high-accuracy thread forms on CNC lathes and manual turning centers.

This insert is suited for threading passes on external cylindrical workpieces in both job shop and production settings. The 7 to 5 TPI range and 3.50 to 5.00 mm pitch coverage make it applicable to a variety of coarse-thread fastener profiles and mechanical thread standards. Its solid carbide substrate handles interrupted cuts and moderate feed rates common in ferrous and non-ferrous turning applications. Licensed machinists and CNC turning specialists are the primary installers of this insert type.

Key Features

• Solid carbide substrate provides rigidity and edge integrity for threading operations
• TiC/TiN multilayer coating improves surface hardness and reduces built-up edge
• 22ER insert style fits standard 22ER-compatible external threading toolholders
• Right-hand orientation for standard external thread cutting
• Partial profile 60-degree thread form covers a range of unified and metric coarse thread pitches
• Thread range of 7 to 5 TPI (3.50 to 5.00 mm pitch) for versatile pitch coverage

Compatibility

Designed as a direct-fit replacement for 22ER-style external threading toolholders accepting inserts with a 0.5 inch inscribed circle and 0.187 inch thickness. Confirm toolholder designation before installation.

Installation Notes

Installation is performed by qualified machinists on CNC or manual lathes with the machine powered down and spindle locked before insert change. Seat the insert fully and evenly in the pocket and tighten the clamping screw to the toolholder manufacturer's specified torque. Inspect the insert seating surface and pocket for chips or debris before securing. Follow shop safety protocols and applicable OSHA machine guarding requirements when servicing cutting tools.