Sandvik Coromant 5756691 Turning Insert WNMG433-KR 3210

Product Description

The SANDVIK COROMANT 5756691 is a solid carbide turning insert with ISO designation WNMG 08 04 12-KR 3210, designed for precision metal turning on CNC lathes and turning centers. It features an 80-degree trigon insert shape (WNMG style) with a CVD-applied multilayer coating of TiCN, Al2O3, and TiN for wear resistance and thermal protection. The KR chip breaker geometry and neutral hand orientation make it well-suited for cast iron machining operations. With 6 available cutting edges, this insert delivers cost-effective tooling utilization in production turning environments. Licensed machinists and CNC operators working in job shop or production settings are the primary users.

This insert is engineered for turning cast iron workpieces, corresponding to ISO workpiece material code K. It fits the SANDVIK COROMANT T-Max P series toolholders and is held in place via clamp and pin methods. The neutral hand designation means it indexes into both right-hand and left-hand compatible toolholders, providing flexibility across turning setups. It is applicable in external and facing operations where consistent chip control and dimensional accuracy are required on cast iron components.

Key Features

• CVD-coated with TiCN, Al2O3, and TiN multilayer for extended tool life in cast iron applications
• 80-degree trigon (WNMG) shape provides 6 indexable cutting edges per insert
• KR chip breaker geometry optimized for cast iron chip control
• Neutral hand insert accommodates both right-hand and left-hand toolholders
• Clamp and pin insert holding method ensures rigid, repeatable seating
• Manufactured to M tolerance and N clearance code for consistent dimensional fit

Compatibility

Designed for use with SANDVIK COROMANT T-Max P series toolholders that accept WNMG 08 04 insert seats. Primary workpiece material is cast iron (ISO material code K). ISO code WNMG 08 04 12-KR 3210 governs toolholder compatibility selection.

Installation Notes

Installation is performed by qualified CNC machinists or tooling technicians. Power down and lock out the machine before indexing or replacing inserts. Seat the insert fully against the pocket locating surfaces before engaging the clamp and pin holding method, and verify seating is flush with no rocking before torquing the clamping screw. Follow the toolholder manufacturer's clamping torque specifications as printed on the toolholder documentation, as no torque value is specified in this product data.