Ingersoll Cutting Tools 6187837 WNMG433MT Turning Insert

Product Description

The INGERSOLL CUTTING TOOLS 6187837 is a solid carbide turning insert designed for metal-cutting lathe operations. It carries the ANSI designation WNMG433MT and ISO code WNMG080412MT, with a TT7025 manufacturer grade. The insert features a CVD-applied multilayer coating of TiCN, Al2O3, and TiN, a combination engineered to deliver moderate wear resistance and toughness suited to cast iron machining. The 80-degree trigon (W-shape) geometry with negative rake and negative side clearance provides six usable cutting edges per insert, reducing per-edge tooling cost. A 0.047-inch corner radius and MT chip breaker geometry make this insert effective for both roughing and medium machining passes.

This insert is intended for turning cast iron workpieces in production and job-shop environments. The TT7025 grade is classified under ISO material group K, targeting cast iron with a balance of wear resistance and edge toughness. The MT chip breaker is suited for moderate-to-heavy depths of cut, making this insert a practical choice on CNC lathes or manual turret lathes where cast iron components such as brake rotors, pump housings, or machine bases are turned at medium-to-high feed rates. A licensed machinist or CNC operator handles installation and edge indexing.

Key Features

• ANSI code WNMG433 / ISO code WNMG080412 - direct cross-reference for toolholder compatibility
• TT7025 grade with CVD TiCN + Al2O3 + TiN multilayer coating for cast iron performance
• Six cutting edges per insert for extended tooling economy
• MT chip breaker geometry supports roughing and medium machining operations
• 0.047-inch corner radius balances edge strength and surface finish
• Negative rake, negative side clearance (clearance code N, tolerance code M) for rigid, stable clamping

Compatibility

Designed for use in WNMG-style toolholders accepting an ANSI size 433 insert with a clamp-style holding method. The 80-degree trigon shape and negative clearance geometry require a toolholder matched to WNMG insert style. No specific compatible holder or machine model was named in the product data; verify toolholder insert pocket specifications before ordering.

Installation Notes

Insert indexing and replacement should be performed by a qualified machinist with the machine fully powered down and the spindle locked. Use the correct torque wrench and clamp hardware specified by the toolholder manufacturer - do not overtighten the clamp screw, as carbide inserts are brittle and can crack under excessive clamping force. Inspect the insert pocket and clamp for wear or debris before seating a new edge. Follow the machine tool builder and shop safety guidelines for workholding and guarding when resuming cuts.