Accupro 75507871 TCMT110208 Carbide Turning Insert

Product Description

The ACCUPRO 75507871 is a carbide turning insert designed for precision material removal on CNC and manual lathes. Built to ANSI code TCMT21.52 and ISO code TCMT110208, this triangular insert features a CVD coating and ACK20P manufacturer grade, making it well-suited for high wear-resistance applications on steel and cast iron. The TCMT insert style incorporates a positive side clearance and a 7-degree relief angle, reducing cutting forces and minimizing workpiece friction. With a 0.80 mm (0.0315 inch) corner radius and a WM+ chip breaker, it delivers controlled chip formation across a range of turning operations. It is installed using a screw-hold method and is intended for use by machinists and CNC operators in production and job-shop environments.

This insert is appropriate for turning steel (ISO material group P) and cast iron (ISO material group K) workpieces where high wear-resistance is the primary requirement. The neutral hand orientation makes it compatible with both left- and right-hand tool holders configured for the TCMT geometry. The WM+ chip breaker geometry is suited to medium cutting conditions with moderate feed rates. Typical applications include OD turning, facing, and light profiling passes on ferrous workpieces in both production and maintenance machining scenarios.

Key Features

• CVD coating with ACK20P grade for high wear-resistance on steel and cast iron
• Triangular insert shape with 3 cutting edges for extended tool life per insert
• 7-degree relief angle with positive side clearance reduces cutting forces
• WM+ chip breaker for controlled chip formation in medium turning conditions
• Screw-hold mounting method for secure, repeatable insert indexing
• Neutral hand orientation for broad tool holder compatibility

Compatibility

Designed as an OEM-style replacement turning insert for TCMT-style tool holders accepting ANSI TCMT21.52 or ISO TCMT110208 geometry inserts with a screw-hold clamping method.

Installation Notes

This insert is installed by a machinist or CNC operator using the appropriate torx or hex key to seat and torque the clamping screw into a compatible TCMT tool holder. Power down and lock out the machine before indexing or replacing inserts. Inspect the insert pocket and clamping screw for wear or damage before seating a new insert. Handle carbide inserts carefully to avoid chipping the cutting edges prior to use.