Accupro 75368340 VCMT331 Turning Insert Carbide Cvd

Product Description

The ACCUPRO 75368340 is a VCMT-style carbide turning insert designed for precision metal-cutting operations 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 and a neutral hand orientation. The CVD coating and ACP25M grade deliver high wear resistance across a range of workpiece materials. A corner radius of 0.0315 inches (0.80 mm) and a maximum depth of cut of 0.1181 inches (3.00 mm) make it well suited for finishing and light semi-finishing passes. Machinists and CNC programmers specify it for tight-tolerance turning where consistent edge life matters.

This insert is intended for turning applications on steel, stainless steel, and cast iron workpieces, corresponding to ISO material groups P, M, and K. The WM+ chip breaker geometry is optimized for controlled chip evacuation during medium to light-duty cuts. It is held in the toolholder by a screw-clamp method and is appropriate for both production-line machining centers and job-shop lathes running ferrous materials. Each package contains one insert, with a minimum order quantity of 10 units.

Key Features

• ANSI code VCMT331, ISO code VCMT160404 for direct toolholder compatibility verification
• CVD-coated ACP25M carbide grade balances wear resistance and toughness across P, M, and K material groups
• 35-degree diamond insert shape provides a sharp, low-force cutting geometry for finishing cuts
• WM+ chip breaker promotes reliable chip control on steel and stainless steel
• Neutral hand orientation fits a broad range of VCMT-compatible toolholders
• Screw-clamp holding method for positive insert seating and repeatable edge indexing

Compatibility

Designed for use in VCMT-style screw-clamp turning toolholders accepting a 0.3752-inch (9.53 mm) inscribed circle insert with a 0.1874-inch (4.76 mm) insert thickness. Compatible workpiece materials include Steel (P), Stainless Steel (M), and Cast Iron (K) per ISO classification.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Before indexing or replacing inserts, disengage the machine spindle and confirm the turret or toolpost is fully stopped. Use the appropriate torx or hex key to seat the clamping screw to the toolholder manufacturer's specified method — do not overtighten, as this can fracture the insert. Inspect the insert pocket for chips or debris before seating a new insert to ensure proper contact and edge geometry.