Ingersoll Cutting Tools 6212743 Turning Insert VBMT331PC

Product Description

The INGERSOLL CUTTING TOOLS 6212743 is a VBMT-style solid carbide turning insert designed for precision external turning operations on steel workpieces. Carrying the manufacturer grade TT8125B, this insert features a CVD-applied multilayer coating of TiCN, Al2O3, and TiN that delivers thermal resistance and wear protection during continuous and interrupted cuts. The diamond-shaped (V) insert has a 35-degree included angle, a 3/8-inch inscribed circle, and a 0.0160-inch corner radius, making it well suited for finishing and semi-finishing passes. It is installed and replaced by machinists and CNC turning center operators in production and job-shop environments.

This insert is intended for turning steel (primary workpiece material code P) in both production and job-shop CNC lathe applications. The neutral hand orientation allows flexible toolholder mounting. The PC chip breaker geometry promotes controlled chip evacuation during steel turning at moderate-to-high feed rates. With a maximum depth of cut of 0.1100 inches, it is optimized for light-to-medium material removal, particularly in finish-turning passes where surface quality and dimensional accuracy are the priority.

Key Features

• Solid carbide substrate with CVD multilayer coating: TiCN, Al2O3, and TiN for extended tool life on steel
• Diamond insert shape (V) with 35-degree included angle for access in tight-profile turning
• 0.0160-inch corner radius balances surface finish quality with edge strength
• PC chip breaker geometry engineered for controlled chip flow on steel workpieces
• Screw-holding method provides secure, repeatable seating in compatible toolholders
• Two cutting edges per insert for extended service before replacement

Compatibility

Designed for use in VBMT-compatible screw-clamp turning toolholders accepting a 3/8-inch inscribed circle insert. ANSI code VBMT331PC TT8125B; ISO code VBMT160404PC TT8125B. Verify toolholder pocket geometry, clearance code B, and tolerance code M requirements before installation.

Installation Notes

This insert is seated and secured by a machinist or toolroom technician using the screw-holding method standard to VBMT toolholders. Power down and lock out the machine spindle before changing inserts. Use the correct torx or hex key to torque the clamping screw to the toolholder manufacturer specification. Inspect the pocket and seating surface for chips or debris before seating the new insert to ensure proper contact and repeatable tool-tip position.