Seco 74001216 Cutoff Insert 0.122 in Carbide T25M

Product Description

The SECO 74001216 is a single-end carbide cutoff insert designed for parting and grooving operations on CNC lathes and turning centers. It carries a T25M manufacturer grade with a CVD-applied TiC/TiCN/TiN coating, delivering wear resistance and thermal stability across a broad range of workpiece materials. The cutting width measures 0.122 inches, the overall length is 0.354 inches, and the corner radius is 0.008 inches. A neutral lead angle and neutral hand orientation make this insert suitable for straightforward cutoff applications without lateral cutting force bias. It is held in place by a clamp-style toolholder. Machinists and CNC operators working in production and job-shop environments are the primary users of this insert.

This insert is rated for universal primary workpiece material compatibility, designated by material code O, and carries a C5 material grade classification. It belongs to the Series 150.10 family and uses chipbreaker style 14. The neutral geometry and CVD coating make it applicable to steel, stainless, cast iron, and non-ferrous materials in standard cutoff scenarios. It is well suited to both production turning and repair machining environments where a reliable, general-purpose cutoff insert is required.

Key Features

• Carbide substrate with CVD-applied TiC/TiCN/TiN multilayer coating for extended tool life
• 0.122-inch cutting width with a width tolerance of 0.003 inches for precise groove sizing
• Neutral lead angle and neutral hand orientation for balanced radial cutting forces
• 0.008-inch corner radius reduces stress concentration at the groove base
• Clamp-style insert holding method for secure, repeatable seating in compatible toolholders
• Series 150.10 designation for direct toolholder family compatibility

Compatibility

Designed for use with Series 150.10 clamp-style cutoff toolholders that accept this insert geometry and 0.122-inch cutting width. Confirm toolholder seat dimensions and chipbreaker clearance before installation.

Installation Notes

Insert installation should be performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine before changing inserts. Use the appropriate torque wrench or clamp screw driver as specified by the toolholder manufacturer to seat the clamp securely without cracking the carbide. Inspect the insert pocket for chips or debris before seating the insert, and verify cutting edge orientation matches the intended direction of cut.