Walter 7782319 Boring Insert P4130-4R12-E47 WKK20S Carbide

Product Description

The WALTER 7782319 is a solid carbide boring insert carrying the ISO designation P4130-4R12-E47 WKK20S. It is designed for precision boring operations on machining centers and turning equipment. The insert features a CVD-applied multilayer coating - TiCN, Al2O3, and TiCN - that delivers wear resistance and thermal stability during continuous or interrupted cuts. With a diamond shape, a positive rake geometry, and the E47 chipbreaker, it controls chip flow effectively at moderate to high cutting speeds. Four available cutting edges extend tool life and reduce cost per edge. A licensed machinist or CNC tooling technician performs installation and setup.

This insert is rated for primary use on cast iron (ISO material code K) and is also suitable for steel applications (ISO material code P). It fits right-hand cutting direction toolholders in the P4130-E47 series. Typical applications include finish and semi-finish boring of housings, cylinders, and bores in general metalworking, automotive, and heavy equipment production environments. The positive rake and E47 chipbreaker geometry make it well suited for situations where chip evacuation and surface finish are priorities.

Key Features

• Solid carbide substrate with CVD multilayer TiCN/Al2O3/TiCN coating for extended wear life
• Diamond insert shape with positive rake for efficient cutting action
• E47 chipbreaker geometry for controlled chip formation on cast iron and steel
• Four cutting edges per insert for maximized value per unit
• Right-hand cutting direction, compatible with P4130-E47 series toolholders
• Meets ISO standards; ISO code P4130-4R12-E47 WKK20S

Compatibility

Designed for use with right-hand P4130-E47 series boring toolholders accepting size code 4R12 inserts. Optimized for cast iron as the primary workpiece material and steel as the secondary workpiece material per ISO classification.

Installation Notes

Installation is performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before seating or replacing the insert. Use the correct torque wrench and manufacturer-specified clamping hardware to secure the insert - do not overtighten by hand. Inspect the insert seat and clamping screw for wear or debris before each insert change to maintain proper seating and cutting accuracy.