Accupro 75282673 VCMT331 Carbide Turning Insert

Product Description

The ACCUPRO 75282673 is a VCMT-style carbide turning insert engineered for precision metal cutting on CNC and manual lathes. Identified by ANSI code VCMT331 and ISO code VCMT160404, this insert features a 35-degree diamond (rhombic) shape with a 7-degree relief angle, providing a positive side clearance geometry that reduces cutting forces on finishing and semi-finishing passes. The CVD coating, applied over a carbide substrate in grade ACM20P, delivers high wear resistance with moderate toughness. The 0.0315-inch corner radius suits tight-tolerance turning where surface finish is critical. A neutral hand designation makes it compatible with both left- and right-hand toolholders using screw-lock holding. Machinists and CNC turning technicians are the primary installers of this consumable insert.

This insert is intended for turning steel and stainless steel workpiece materials, covering ISO material groups P and M. The ACM20P grade targets high wear-resistance to moderate wear-resistance and toughness across those material groups, making it appropriate for continuous and light interrupted cuts on components such as shafts, flanges, and fittings. With a maximum depth of cut of 0.0886 inches (2.25 mm) and an inscribed circle of 0.3752 inches (9.53 mm), this insert suits light to medium stock removal in production turning environments. The WSF+ chip breaker geometry promotes chip control at moderate feed rates on steel and stainless alloys.

Key Features

• ANSI code VCMT331, ISO code VCMT160404 for direct cross-reference and toolholder compatibility
• CVD-coated carbide grade ACM20P for high wear resistance on steel and stainless steel
• 35-degree diamond insert shape with positive side clearance for reduced cutting forces
• WSF+ chip breaker geometry supports chip control at moderate feed rates
• Neutral hand design fits both left- and right-hand VCMT screw-lock toolholders
• 0.0315-inch corner radius for tight-tolerance finishing and semi-finishing operations

Compatibility

Designed for use in VCMT screw-lock turning toolholders accepting ANSI size code 331 or ISO size code 160404 inserts. Compatible with toolholders rated for a 35-degree diamond insert shape with positive clearance geometry.

Installation Notes

Installation is performed by CNC or manual lathe operators and toolroom technicians. Power down or place the machine in an E-stop state before changing inserts. Use the appropriate torx or hex key to seat and torque the clamping screw per the toolholder manufacturer specification. Inspect the insert pocket and clamping screw for wear or damage before seating a new insert to ensure proper clamping force and runout control.