Hertel H59875062 Boring Insert TD6P1 HC620B Solid Carbide

Product Description

The HERTEL H59875062 is a solid carbide boring insert designed for precision internal boring operations on CNC lathes and machining centers. This insert carries the HC620B manufacturer grade and features a multilayer CVD coating sequence of TiN, TiC, TiCN, and TiN, which builds hardness and wear resistance across a range of workpiece materials. The 60-degree triangular geometry with an 11-degree relief angle provides clearance and reduces cutting forces. The 1/64-inch corner radius keeps the edge sharp for finishing cuts. This insert is intended for use by machinists and toolroom technicians working in production or job-shop environments.

The H59875062 suits boring applications where a screw-held triangular insert is the specified holding method. The 3/8-inch inscribed circle and 0.127-inch thickness fit standard TD6P1-style boring bars and insert pockets. The C7 material grade makes this insert well suited for machining cast iron, nonferrous alloys, and similar materials at moderate to high cutting speeds. It is appropriate for both light finishing and semi-finishing passes in internal diameter work on manual or CNC turning equipment.

Key Features

• Solid carbide substrate with HC620B manufacturer grade for consistent cutting performance
• Multilayer CVD coating: TiN, TiC, TiCN, TiN for enhanced wear resistance and tool life
• 60-degree triangular shape with 11-degree relief angle reduces cutting pressure and chatter
• 1/64-inch corner radius suited for semi-finishing and finishing boring passes
• Screw-held insert style (TD6P1) for positive, repeatable seating in compatible boring bars
• C7 material grade appropriate for cast iron and nonferrous workpiece materials

Compatibility

Designed for use in TD6P1-style insert pockets with a 3/8-inch inscribed circle and screw-clamping holding method. Compatible boring bars must accept a 0.130-inch hole diameter for the clamping screw.

Installation Notes

Installation is performed by qualified machinists or toolroom personnel. Ensure the machine spindle is fully stopped and the turret or tool post is locked out before seating or replacing inserts. Use the correct torque driver for the clamping screw to avoid stripping the insert pocket. Inspect the insert pocket and seating surface for chips or debris before installing a new insert, as contamination will affect runout and surface finish.