Hertel H48441968 Boring Insert Wpgt Solid Carbide Tin

Product Description

The HERTEL H48441968 is a solid carbide boring insert designed for precision internal turning and boring operations on CNC and manual lathes. Manufactured to WPGT geometry with an 80-degree trigon shape, this insert carries a TiN coating applied via PVD process, which extends tool life and reduces built-up edge when cutting ferrous materials. It is sized at 3/16 inch inscribed circle with a 1/16 inch thickness and a 0.004 inch corner radius, making it suited for fine-tolerance boring passes. The material grade is C5 solid carbide. Machinists and tool-room technicians working in production or job-shop environments are the primary installers.

This insert is intended for boring applications where a trigon-shaped WPGT insert with an 11-degree relief angle is specified. The HF1 chipbreaker geometry is suited for light to moderate chip loads during internal diameter finishing and semi-finishing cuts. The insert is held by screw clamping (screw-on holding method) and is appropriate for use in toolholders designed to accept WPGT-style inserts. Typical applications include bore finishing on steel and cast iron workpieces in both job-shop and production environments.

Key Features

• 80-degree trigon (WPGT) geometry for stable screw-on clamping in compatible holders
• Solid carbide C5 grade construction for wear resistance in ferrous and non-ferrous cutting
• TiN coating via PVD process reduces friction and extends insert life
• HF1 chipbreaker designed for light to moderate chip loads in boring applications
• 0.004 inch corner radius supports fine-tolerance finishing passes
• 11-degree relief angle reduces rubbing on internal diameter walls

Compatibility

Designed as an OEM-style replacement insert for toolholders accepting WPGT-style screw-on boring inserts with a 3/16 inch inscribed circle.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician with the machine powered down and spindle locked. Seat the insert fully against the pocket walls before torquing the clamping screw; do not over-torque, as carbide inserts are brittle. Inspect the pocket and seating surface for chips or debris before each insert change. Follow the toolholder manufacturer's recommended torque procedure for WPGT screw-on inserts.