Hertel H59873315 Boring Insert Triangle Tin Solid Carbide

Product Description

The HERTEL H59873315 is a solid carbide boring insert designed for precision internal boring operations on CNC and manual turning centers. Manufactured to insert style TDHB in a 60-degree triangle shape, this insert features a Physical Vapor Deposition (PVD) titanium nitride (TiN) coating applied over a C5-grade solid carbide substrate. The screw-hold mounting method provides secure, repeatable seating in compatible boring bar pockets. With a 0.002-inch corner radius and a 15-degree relief angle, the geometry supports clean, controlled cutting action in tight-tolerance bore applications. The insert measures 5/32-inch inscribed circle and 3/64-inch thickness. It is installed by machinists and toolroom professionals in production and maintenance environments.

This boring insert is suited for internal diameter finishing and semi-finishing operations on a range of ferrous and non-ferrous materials where TiN-coated carbide tooling is appropriate. The TDHB insert style fits boring bars and toolholders designed to accept screw-held triangle inserts with the corresponding 1.280.75.0.1 size code. Typical applications include precision shaft bores, housing bores, and bearing seat preparation in both job-shop and production settings.

Key Features

• Solid carbide substrate, material grade C5, for rigidity and wear resistance in boring applications
• TiN coating applied via PVD process for improved surface hardness and tool life
• 60-degree triangle shape (TDHB insert style) with 15-degree relief angle for clearance in bore entry
• 0.002-inch corner radius for controlled surface finish in precision bore work
• Screw-hold mounting method ensures positive, repeatable insert location
• 5/32-inch inscribed circle and 3/64-inch thickness conform to standard TDHB pocket dimensions

Compatibility

Designed for use in boring bars and toolholders accepting screw-held TDHB-style triangle inserts with size code 1.280.75.0.1. Confirm pocket geometry and screw size against the toolholder specification before ordering.

Installation Notes

Installation is performed by a qualified machinist or toolroom technician. Power down and lock out the machine spindle before changing inserts. Use the correct torque wrench and manufacturer-specified insert screws when seating the insert to avoid pocket damage. Inspect the insert pocket and clamping screw for wear or debris before mounting a new insert.