Accupro 75354621 WNMG433 Carbide Turning Insert

Product Description

The ACCUPRO 75354621 is a WNMG-style carbide turning insert designed for general-purpose external turning operations on CNC lathes and turning centers. It carries ANSI code WNMG433 and ISO code WNMG080412, providing a standardized reference for toolholder compatibility. The insert is manufactured from carbide substrate with a CVD coating in grade ACK10P, engineered for high wear resistance when machining steel (P) and cast iron (K) workpiece materials. With a trigon 80-degree included angle, a 0.0315-inch corner radius, and six available cutting edges, this insert delivers consistent performance and cost-effective edge utilization across medium to high-volume turning applications.

This insert is suited for production turning environments where tool life and surface finish consistency are priorities. It fits toolholders designed for WNMG-style negative-rake inserts with clamp, lever lock, pin, or screw holding methods. Typical applications include roughing and semi-finishing passes on steel alloys and cast iron components. The 909+ chip breaker geometry supports chip control across a range of feed rates and depths. Maximum depth of cut is 0.1575 inches (4.00 mm), making it appropriate for moderate material removal rates in both high-production and job-shop turning setups.

Key Features

• CVD-coated carbide grade ACK10P for high wear resistance on steel and cast iron
• WNMG433 / WNMG080412 ANSI and ISO standardized insert codes for broad toolholder compatibility
• Six cutting edges per insert for extended cost-per-edge value
• 909+ chip breaker geometry for effective chip control during turning
• Neutral hand orientation for flexible setup in right- or left-hand toolholders where geometry allows
• Negative side clearance with M tolerance code for secure, repeatable seating

Compatibility

Designed as an OEM-style replacement insert compatible with WNMG-style toolholders accepting negative-rake trigon inserts with clamp, lever lock, pin, or screw clamping methods per ANSI WNMG433 and ISO WNMG080412 standards.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician with the machine powered off and in a safe, locked-out state before changing inserts. Use the appropriate torx or hex key specified by the toolholder manufacturer when tightening the clamping screw or lever lock mechanism — do not overtighten, as this can chip the insert or damage the pocket seat. Inspect the insert pocket and seating surfaces for chips or debris before seating the new insert. Verify depth-of-cut and feed parameters against the grade and chip breaker recommendations before resuming cutting operations.