Sandvik Coromant 8019493 Turning Insert Tpmt-pf 4425

Product Description

The SANDVIK COROMANT 8019493 is a TPMT-series triangular carbide turning insert designed for precision external and internal turning operations on CNC lathes and turning centers. Manufactured in grade 4425 solid carbide with a CVD-applied multilayer coating of TiCN, Al2O3, and TiN, this insert delivers wear resistance and thermal stability suited to steel cutting applications. It features a neutral hand orientation, a 0.156-inch inscribed circle, and a 0.0156-inch corner radius. The PF chip breaker geometry promotes controlled chip formation at moderate feeds and depths. Machinists and CNC operators install this insert during routine tooling changes or when optimizing finishing and semi-finishing passes on steel workpieces.

This insert is engineered primarily for steel machining, with secondary suitability for cast iron and similar ferrous materials indicated by ISO material group codes P and K. The TPMT 06 T1 04-PF geometry is a standard indexable insert format used on compatible toolholders requiring a triangular TPMT-style insert with a clamp or screw holding method. It is suited to both light production environments and high-volume CNC turning cells where consistent surface finish and tool life are priorities.

Key Features

• Grade 4425 solid carbide substrate for toughness and wear resistance in steel cutting
• CVD multilayer coating: TiCN, Al2O3, and TiN for thermal barrier and crater wear resistance
• Triangular insert shape (TPMT) with neutral hand for flexible toolholder compatibility
• PF chip breaker geometry for controlled chip evacuation at moderate cutting parameters
• 0.0156-inch corner radius suited to semi-finishing and finishing operations
• Compatible with clamp and screw-type toolholder clamping methods

Compatibility

Designed as a standard TPMT-style indexable turning insert for use in compatible toolholders that accept a triangular TPMT insert with clamp or screw holding. ISO code TPMT 06 T1 04-PF 4425 identifies the exact insert geometry and grade for toolholder matching.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician with the machine powered down and all axes at a safe position. Seat the insert fully against the toolholder pocket before tightening the clamping screw or clamp to the toolholder manufacturer's specified procedure. Inspect the insert pocket for chips or debris before seating to prevent insert rocking or premature fracture. Index or replace the insert at the first sign of chipping, flank wear beyond acceptable limits, or degraded surface finish on the workpiece.