Hertel H59873190 Boring Insert Cdhh 80 Diamond Tin Solid Carbide

Product Description

The HERTEL H59873190 is a solid carbide boring insert designed for precision internal boring operations on CNC and manual lathes. Configured in the CDHH style with an 80-degree diamond shape, this insert delivers sharp, controlled cutting geometry suited for finishing and semi-finishing passes in steel and cast iron. The PVD-applied TiN coating improves surface hardness and wear resistance, extending tool life in moderate to high-speed applications. With a 1/64-inch corner radius and a 15-degree relief angle, it produces tight tolerances in small-bore applications. Machinists and tooling specialists working in precision machining environments rely on this insert for consistent performance in tight-diameter bores.

This insert is sized for small-bore boring bars and holders accepting CDHH-style inserts with a 5/32-inch inscribed circle diameter. It is suited for right-hand cutting applications in production and job-shop environments. Typical applications include finish boring of bearing bores, hydraulic valve bodies, and precision housings in ferrous and non-ferrous metals. The screw-type holding method requires a compatible boring bar with the appropriate clamp and seat geometry. Sold individually per package; minimum order quantity is 10 units.

Key Features

• Solid carbide construction with PVD TiN coating for improved wear resistance and tool life
• 80-degree diamond insert shape provides sharp geometry for finish boring passes
• 1/64-inch corner radius suited for tight-tolerance and fine-finish applications
• 15-degree relief angle reduces cutting forces in small-diameter bores
• Screw-type insert holding method for positive clamping and repeatable positioning
• Right-hand cut orientation for standard boring bar setups

Compatibility

Designed for use in CDHH-style boring bar holders accepting inserts with a 5/32-inch inscribed circle. Consult your boring bar manufacturer specifications to confirm seat geometry and screw compatibility before installation.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Power down and lock out the machine spindle before changing inserts. Ensure the insert seat and clamping screw are clean and free of chips before seating the insert. Use the correct torx or hex key as specified by the boring bar manufacturer to secure the clamping screw - do not overtighten, as solid carbide inserts are brittle and can fracture under excess clamping force.