Hertel H59875260 Boring Insert TD6P2 HT630B Cermet

Product Description

The HERTEL H59875260 is a cermet uncoated boring insert designed for precision internal turning and boring operations on CNC and manual lathes. Formed in a 60-degree triangular geometry under the TD6P2 insert style, it seats securely via screw-lock clamping and delivers consistent performance on ferrous materials where cermet grade C8 excels. The 3/8-inch inscribed circle (0.3750 inches) and 1/8-inch thickness (0.1270 inches) suit medium to light-duty boring applications. A 1/32-inch corner radius (0.0310 inches) and 11-degree relief angle provide clean, controlled cutting action. Machinists and toolroom professionals working with production boring bars will find this insert a direct-use replacement at the machine.

This insert is suited for internal boring, finish turning, and light roughing passes in metalworking environments including job shops, production facilities, and toolroom operations. The cermet substrate performs well on cast iron, steel, and similar ferrous workpiece materials where surface finish and dimensional accuracy are priorities. The TD6P2 geometry and HT630B grade designation are matched to medium-speed cutting conditions. This item is sold individually with a minimum order quantity of 10 units, making it appropriate for toolcrib stocking and planned maintenance replenishment.

Key Features

• Cermet uncoated grade HT630B (C8) for consistent performance on ferrous materials
• 60-degree triangular insert shape with 11-degree relief angle for clean cutting geometry
• 1/32-inch corner radius (0.0310 inches) for controlled surface finish in boring operations
• 3/8-inch inscribed circle for compatibility with standard boring bar pockets
• Screw-lock insert holding method for secure, repeatable seating
• Sold as single inserts; minimum order quantity of 10 units

Compatibility

Designed as an OEM-style replacement insert for boring bars and toolholders accepting TD6P-style triangular inserts with a 3/8-inch inscribed circle and screw-lock clamping.

Installation Notes

Installation of indexable boring inserts should be performed by a qualified machinist with the machine powered down and all spindle motion stopped. Use the correct torque screwdriver or insert key for the clamping screw to avoid stripping the pocket or damaging the insert seat. Inspect the pocket and clamping screw for wear or debris before seating a new insert. Index or replace the insert at the first sign of chipping, built-up edge, or dimensional drift in the finished bore.