Seco 74016599 Carbide Cutoff Insert 0.122 in T25M

Product Description

The SECO 74016599 is a solid carbide cutoff insert designed for parting and grooving operations on CNC and manual lathes. It carries the T25M manufacturer grade with a CVD-applied TiC/TiCN/TiN multilayer coating that builds wear resistance and extends tool life across a broad range of workpiece materials. The insert features a 0.122-inch cutting width, a 0.008-inch corner radius, and a neutral lead angle with zero relief angle. Chipbreaker designation 16 is molded into the geometry. At 0.354 inches overall length, the insert seats into Series 150.10 clamp-style toolholders and is removed and indexed by the clamping mechanism without additional fasteners. Machinists and toolroom technicians are the primary installers.

This insert is suited for cut-off and parting applications on a universal range of workpiece materials, making it a general-purpose choice for job shops running mixed-material work. The neutral hand and neutral lead angle suit straight-in plunge parting. The Series 150.10 designation identifies the compatible toolholder family. Single-end geometry means the insert is consumed from one cutting edge only. Minimum order quantity is 10 pieces; each package contains 1 insert.

Key Features

• Solid carbide substrate, material grade C5, for rigidity and heat resistance
• CVD TiC/TiCN/TiN multilayer coating for extended wear life on universal workpiece materials
• 0.122-inch cutting width with tight width tolerance of plus or minus 0.003 inches
• 0.008-inch corner radius reduces stress concentration at the cutting edge
• Neutral lead angle and neutral hand for straight plunge parting without lateral cutting force
• Chipbreaker 16 geometry for controlled chip evacuation during cut-off operations
• Clamp-style insert holding method for quick, repeatable indexing without set screws

Compatibility

Designed for use with Series 150.10 clamp-style cutoff and parting toolholders that accept the 3N insert size code.

Installation Notes

Installation is performed by a qualified machinist or toolroom technician. Power down and lock out the machine spindle before seating or removing the insert. Ensure the toolholder pocket and clamp surfaces are clean and free of chips before inserting to achieve proper seating and maintain width tolerance. Do not exceed the toolholder manufacturer's recommended depth-of-cut or feed rate for this insert geometry.