Value Collection VNMG160408K20 Turning Insert Grade I22

Product Description

The VALUE COLLECTION VNMG160408K20 is a solid carbide turning insert designed for precision lathe and turning center operations. Featuring a 35-degree diamond (rhombic) V-shape with a negative side clearance and a 0.0315-inch corner radius, this insert is built for finishing and semi-finishing cuts across a range of workpiece materials. The manufacturer grade I22 designation identifies the carbide grade and chip breaker geometry suited for controlled chip formation. At 16.60 mm in length with a 0.3752-inch inscribed circle and 3/16-inch thickness, it fits standard VNMG toolholders. The bright, uncoated finish makes it well-suited for applications where coating-induced built-up edge is a concern.

This insert is appropriate for turning operations on cast iron, steel alloys, non-ferrous metals, and superalloys, corresponding to primary workpiece material codes K, M, N, and S. It installs in VNMG-style toolholders using a clamp and pin holding method, which is common in production turning setups on both manual and CNC lathes. The ANSI insert code VNMG332 and ISO insert code VNMG160408 identify it within standard tooling catalogs, making cross-referencing to compatible holders straightforward for machinists and tool cribs alike.

Key Features

• 35-degree diamond (rhombic) V-shape insert for tight clearance angles in turning operations
• Solid carbide construction, material grade C2, uncoated bright finish
• Negative side clearance (clearance code N) with tolerance code M for consistent seating
• G-style chip breaker geometry for controlled chip evacuation during finishing passes
• Clamp and pin holding method compatible with standard VNMG toolholders
• Rated for workpiece material codes K, M, N, and S — cast iron, steel, non-ferrous, and superalloys

Compatibility

Designed for use in VNMG-style toolholders accepting ANSI insert code VNMG332 or ISO insert code VNMG160408 with a 0.1500-inch hole diameter and clamp-and-pin retention.

Installation Notes

Installation is performed by a machinist or toolroom technician during toolholder setup on a lathe or turning center. Power down and de-energize the machine before indexing or replacing inserts. Seat the insert fully against the pocket before tightening the clamp to ensure proper contact and repeatable tool geometry. Handle carbide inserts carefully to avoid chipping the cutting edge prior to use.