Walter 7021457 Turning Insert CNGG120404-MS3 WSM01 Carbide

Product Description

The WALTER 7021457 is a solid carbide turning insert designed for precision metal cutting in demanding machining environments. Identified by ISO code CNGG120404-MS3 WSM01, this insert carries a TiAlN, Al2O3, and ZrN PVD coating applied over a carbide substrate. The 80-degree diamond shape (CNGG style) and neutral hand orientation make it suitable for a wide range of turning operations. It features 4 cutting edges, a 0.4 mm corner radius, and a honed cutting edge style. The MS3 chip breaker geometry is engineered for chip control in tough materials. This insert is installed by machinists and CNC operators in turning centers and lathes.

This insert is rated for primary use on stainless steel, superalloys, and titanium (ISO material codes M and S). It also performs on steel, non-ferrous metals, and hard materials (ISO codes P, N, and H). Applicable material grades include M10, S10, P10, N10, and H20. Multi-use applications include turning, facing, and boring. The CNGG-MS3 series is built for negative-rake toolholders requiring a clamp and pin holding method, common in production turning and facing operations on difficult-to-machine alloys.

Key Features

• Solid carbide substrate with TiAlN, Al2O3, and ZrN PVD multilayer coating for heat and wear resistance
• MS3 chip breaker optimized for stainless steel, superalloys, and titanium
• 4 usable cutting edges for extended tool life per insert
• 80-degree diamond insert shape (CNGG) with neutral hand - fits standard CNGG toolholders
• Honed cutting edge style reduces built-up edge on difficult workpiece materials
• Meets ANSI and ISO standards; ISO code CNGG120404-MS3 WSM01, industry standard CNGG431-MS3 WSM01

Compatibility

Designed for use in CNGG-style toolholders using clamp and pin insert retention. Compatible with turning centers and CNC lathes running stainless steel, superalloys, titanium, steel, non-ferrous metals, and hard materials. ISO material grades M10, S10, P10, N10, and H20 apply.

Installation Notes

This insert is seated and secured by a machinist or CNC toolroom technician using the clamp and pin holding method standard for CNGG-style pockets. Power down and lock out the machine spindle before changing inserts. Inspect the toolholder pocket for debris or wear before seating a new insert. Do not exceed the maximum depth of cut for the workpiece material and operation type.