Seco 74017606 Cnmg 643-MR7 TP40 Carbide Turning Insert

Product Description

The SECO 74017606 is a CNMG 643-MR7 series indexable turning insert manufactured from solid carbide with a multilayer CVD coating of TiC, TiCN, and TiN. Carrying the TP40 manufacturer grade, this insert is engineered for productive material removal on steel and stainless steel workpieces. It features an 80-degree diamond insert shape, a 3/4-inch inscribed circle, and a 3/64-inch corner radius with a T-Land cutting edge style. The MR7 chip breaker geometry and negative rake angle support stable cutting across roughing and semi-finishing operations. Rated for boring, facing, and turning applications, it suits CNC lathes and turning centers where consistent chip control and tool life are priorities for machining professionals.

This insert is intended for use in general turning operations on steel (ISO P) and stainless steel (ISO M) workpieces. With a maximum depth of cut of 0.7126 inches and compatibility with clamp, pin, and lever lock holding methods, it fits a range of standard CNMG toolholders used in production and job-shop environments. The neutral hand orientation makes it adaptable to both OD and ID turning setups. The insert conforms to ANSI and ISO standards, with an ISO designation of CNMG190612-MR7 and an industry standard number of CNMG643-MR7, making cross-referencing to existing toolholder inventory straightforward.

Key Features

• Multilayer CVD coating (TiC, TiCN, TiN) for extended wear resistance on ferrous materials
• TP40 grade targets steel and stainless steel in moderate to demanding cutting conditions
• MR7 chip breaker geometry with T-Land edge for controlled chip formation and edge stability
• 4 cutting edges per insert maximize indexing value
• Compatible with clamp, pin, and lever lock holding methods for broad toolholder fitment
• Conforms to ANSI and ISO standards; cross-references to ISO code CNMG190612-MR7

Compatibility

Designed for use in standard CNMG-style toolholders that accept a 643 insert size with clamp, pin, or lever lock retention. Compatible with applications involving steel (ISO P) and stainless steel (ISO M) workpieces. Industry standard number CNMG643-MR7 and ISO code CNMG190612-MR7 apply for cross-referencing.

Installation Notes

Installation is performed by a machinist or toolroom technician familiar with indexable insert toolholders. Ensure the machine spindle is fully stopped and the toolholder is secured in the turret before seating or indexing the insert. Verify the insert pocket and seating surfaces are clean and free of chips before clamping. Follow the toolholder manufacturer torque specifications for the clamping screw or lever lock mechanism.