Hertel H59875237 Boring Insert TD6P2 HT540B Solid Carbide

Product Description

The HERTEL H59875237 is a solid carbide boring insert designed for precision internal turning and boring operations on CNC and manual lathes. Classified under insert style TD6P2 and manufacturer grade HT540B, this uncoated triangular insert features a 60-degree included angle, a 1/32 inch (0.0310 inch) corner radius, and an 11-degree relief angle. The uncoated solid carbide substrate is rated at material grade C1, making it appropriate for applications where coating is not required or where a sharp, true-carbide edge is preferred. Screw-on holding keeps the insert securely indexed during cutting. Machinists, tool-and-die technicians, and CNC operators in job shops or production environments are the primary installers.

This insert is suited for light to medium boring, internal turning, and profiling operations on ferrous and non-ferrous workpieces. The triangular shape provides three usable cutting edges per insert, extending tool life between change-outs. With a 3/8 inch inscribed circle (0.3750 inch) and a thickness of 1/8 inch (0.1270 inch), the H59875237 fits boring bars and toolholders designed for the TD6P insert style. It is sold individually, with a minimum order quantity of 10 units per transaction.

Key Features

• Solid carbide construction, uncoated, material grade C1
• 60-degree triangle shape with three usable cutting edges
• 11-degree relief angle for clearance during internal boring
• 1/32 inch corner radius (0.0310 inch) for controlled edge geometry
• Screw-on insert holding method for positive, repeatable indexing
• 3/8 inch inscribed circle fits standard TD6P-style boring bar pockets

Compatibility

Designed as a replacement or production-run insert for toolholders and boring bars that accept TD6P2-style triangular inserts with a 3/8 inch inscribed circle and screw-on mounting.

Installation Notes

Insert installation and indexing should be performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and locked out before changing inserts. Use the correct torque wrench or insert screw driver specified by the toolholder manufacturer when tightening the clamping screw - do not overtighten. Inspect the insert pocket seating surface for chips or debris before seating the new insert to maintain proper edge geometry.