Hertel H59874982 Boring Insert TD6P05 HP520B Solid Carbide

Product Description

The HERTEL H59874982 is a solid carbide boring insert designed for precision internal boring operations on CNC and manual machining equipment. It features a triangular 60-degree included angle geometry with an 11-degree relief angle, a 3/8-inch inscribed circle, and a 0.007-inch corner radius. The insert carries a TiN coating applied via a PVD process, which increases surface hardness and wear resistance for longer tool life in ferrous and non-ferrous cutting applications. Rated at material grade C5, it is suited for finishing and semi-finishing passes where dimensional accuracy and edge integrity are critical. Screw-style clamping secures the insert in compatible boring bar pockets.

This insert is intended for use in boring bars and modular boring systems that accept TD6P-style inserts with a 05 size code. Typical applications include internal diameter finishing on lathes and machining centers in production shops, tool rooms, and job shops. It is appropriate for machining steel, cast iron, and other materials within the C5 grade range. The compact 1/8-inch thickness and 3/8-inch inscribed circle make it well suited for small-bore work where clearance is limited.

Key Features

• Solid carbide construction with PVD TiN coating for extended wear life
• 60-degree triangle shape with 11-degree relief angle for positive cutting geometry
• 0.007-inch corner radius for semi-finish and finish boring passes
• 3/8-inch inscribed circle and 1/8-inch thickness for small-bore applications
• Screw-style insert holding method for secure, repeatable seating
• Material grade C5 suitable for a broad range of ferrous and non-ferrous materials

Compatibility

Designed for use in boring bars and tool holders that accept TD6P insert style with a 05 size code and screw-style clamping. Verify holder pocket geometry and screw thread before installation.

Installation Notes

Insert installation should be performed by a qualified machinist or tooling technician. Power down and lock out the spindle before changing inserts. Use the correct torque screwdriver for the clamp screw to avoid insert cracking or improper seating - refer to the boring bar manufacturer specifications for fastener torque. Inspect the insert pocket for chips or wear before seating a new insert.