Accupro 75552166 Turning Insert DCMT32.52 Carbide Cvd

Product Description

The ACCUPRO 75552166 is a DCMT-style carbide turning insert designed for precision lathe and turning center operations. It features a 55-degree diamond (rhombic) insert shape with a CVD coating and a neutral hand orientation. The ACK20P manufacturer grade delivers high wear-resistance on steel (P) and a range from high to moderate wear-resistance with added toughness on cast iron (K). With a corner radius of 0.0315 inches (0.80 mm) and a maximum depth of cut of 0.1181 inches (3.00 mm), this insert suits finishing and semi-finishing passes where dimensional accuracy and surface quality are the priority.

This insert is suited for use in CNC turning centers and manual lathes where DCMT-style toolholders with screw-clamping (hole diameter 0.1772 inches) are in service. Primary workpiece materials are steel and cast iron. The WM+ chip breaker geometry promotes controlled chip formation across a range of feed rates and depths, making this insert a practical choice for production turning in job shops and manufacturing environments. Installation requires a compatible DCMT screw-on toolholder.

Key Features

• DCMT insert style with 55-degree diamond (rhombic) shape for versatile turning applications
• CVD coating in ACK20P grade for high wear-resistance on steel and cast iron
• WM+ chip breaker geometry for controlled chip formation
• Positive side clearance (clearance code C) reduces cutting forces
• 2 usable cutting edges per insert for extended tool life value
• Screw-clamp holding method (hole diameter 0.1772 inches) for secure, repeatable seating

Compatibility

Designed for use in DCMT screw-on toolholders conforming to ANSI insert code DCMT32.52 and ISO insert code DCMT11T308. Compatible with toolholders accepting a 55-degree diamond insert with a 0.3752-inch (9.53 mm) inscribed circle and a thickness of 0.1563 inches (3.97 mm).

Installation Notes

Installation is performed by machinists or tooling technicians on CNC or manual turning equipment. Power down and lock out the machine spindle before seating or indexing inserts. Use the manufacturer-specified torx or hex key to tighten the clamping screw to toolholder specifications — do not overtighten, as this can fracture the insert. Inspect the toolholder pocket and seating surface for chips or debris before installing a fresh cutting edge.