Hertel H59875039 Boring Insert TD6P05 HT630B Cermet

Product Description

The HERTEL H59875039 is a cermet uncoated boring insert designed for precision internal turning and boring operations on CNC lathes and machining centers. Formed in a 60-degree triangle (TD6P) geometry with an 11-degree relief angle, this insert delivers clean, consistent cuts in ferrous and non-ferrous workpiece materials. The HT630B cermet grade offers high hardness and wear resistance at elevated cutting speeds. A 0.007-inch corner radius provides a controlled surface finish without excessive edge stress. At 0.127 inches thick with a 3/8-inch inscribed circle, the insert seats securely in compatible TD6P-style boring tool holders via screw clamping. Machinists and toolroom professionals install this insert in production and precision boring applications.

This insert is suited for finish and semi-finish boring passes in medium-duty machining environments. The cermet substrate performs well in applications requiring tight tolerances and consistent surface finishes, particularly when cutting speeds are moderate to high. The screw-on insert holding method provides positive clamping with repeatable indexing. It is sold individually and carries a minimum order quantity of 10 units, making it appropriate for shop floor stocking or tooling room replenishment programs.

Key Features

• Cermet uncoated substrate in HT630B grade for high-speed finish boring
• 60-degree triangle (TD6P) insert geometry with 11-degree relief angle
• 0.007-inch corner radius for controlled surface finish
• 3/8-inch inscribed circle with 0.130-inch hole diameter for screw-clamp mounting
• Compact 0.127-inch thickness fits standard TD6P boring tool holders
• Sold as single insert with a minimum order quantity of 10 units

Compatibility

Designed as an OEM-style replacement insert for TD6P-style boring tool holders that accept a 60-degree triangular insert with a 3/8-inch inscribed circle and screw-on clamping.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Power down and lock out the spindle before indexing or replacing inserts. Use the correct torque wrench and insert screw per the tool holder manufacturer specifications to avoid seat damage or insert fracture. Inspect the insert pocket and seating surface for chips or debris before seating the new insert.