Tool-flo C3909400N4C Grooving Insert TNMA43 GP50C Solid Carbide

Product Description

The TOOL-FLO C3909400N4C is a solid carbide grooving insert designed for precision external and internal grooving operations on steel workpieces. Manufactured to the TNMA43 insert style, it features a GP50C grade substrate with a PVD-applied TiN coating for improved wear resistance and tool life. The insert delivers a cutting width of 0.094 inches and a maximum depth of cut of 0.215 inches, making it suited for tight-tolerance groove profiles. The neutral hand orientation and screw-in holding method support secure, repeatable seating in compatible On-Edge series toolholders. Licensed machinists and toolroom technicians are the primary installers of this insert.

This insert is intended for use on CNC lathes and turning centers where steel is the primary or secondary workpiece material. The On-Edge series configuration positions the insert for side-load grooving applications. The GP50C grade and TiN finish make this a reliable choice for production runs and job-shop environments where consistent groove geometry and surface finish are critical. The insert is sold individually with a minimum order quantity of 10 units.

Key Features

• Solid carbide construction with PVD TiN coating for extended wear resistance on steel
• 0.094 inch cutting width for precise, narrow groove profiles
• Maximum depth of cut of 0.215 inches within the 0.200 to 0.300 inch range
• Neutral hand orientation for flexible toolholder compatibility
• Screw-in holding method ensures secure, repeatable insert seating
• On-Edge series design optimized for side-load grooving operations

Compatibility

Designed for use in On-Edge series toolholders accepting TNMA43 style grooving inserts with screw-in mounting. ISO code reference: TNMA43NGCW.094. Compatible primary and secondary workpiece material is steel.

Installation Notes

Insert replacement and seating should be performed by a qualified machinist or toolroom technician with the machine fully powered down and all axes locked before servicing the toolholder. Use the appropriate torx or hex key to secure the clamping screw to the toolholder manufacturer's specified procedure without over-torquing. Inspect the insert pocket and screw threads for wear or debris before seating a new insert. Verify cutting width and depth-of-cut parameters match the programmed toolpath before resuming production.