Sandvik Coromant 5740957 Grooving Cutoff Toolholder

Product Description

The SANDVIK COROMANT 5740957 is an external indexable grooving and cutoff toolholder in the T-Max Q-Cut series, designed for precision groove turning and parting operations on CNC lathes and turning centers. It accepts N151.2-400-5E inserts secured by a clamp-style insert holding method, and handles groove widths from 3.96 mm to 6 mm with a maximum depth of cut of 24.89 mm (0.98 inches). The right-hand configuration and 1 x 1 inch square shank make it a standard fit for a wide range of tooling blocks and turrets used in production machining environments. Machinists and CNC operators performing grooving or cutoff work on ferrous and non-ferrous materials will find this toolholder suited to stable, repeatable performance.

This toolholder is intended for external grooving and cutoff applications in both job shop and production settings. With a 1 inch square shank and overall length of 152.40 mm (6 inches), it fits into standard square-shank tool stations on most CNC turning centers. The insert seat size of 40.0 and compatibility with the N151.2-400-5E insert family make it straightforward to source replacement inserts. It is appropriate for medium to high volume turning operations where consistent groove geometry and clean parting cuts are required.

Key Features

• Clamp-style insert holding for secure, repeatable insert positioning during grooving and cutoff
• Groove width range of 3.96 mm to 6 mm accommodates multiple groove specifications with compatible inserts
• Maximum depth of cut of 24.89 mm (0.98 inches) supports deep grooving and full parting operations
• 1 x 1 inch square shank (25.40 mm x 25.40 mm) fits standard CNC lathe tool stations without modification
• T-Max Q-Cut series toolholder style RF151.23-16-40 for external right-hand applications
• Overall length of 152.40 mm (6 inches) with a shank length of 105.41 mm (4.15 inches) for stable overhang control

Compatibility

Compatible with N151.2-400-5E grooving inserts, insert seat size 40.0. Part of the SANDVIK COROMANT T-Max Q-Cut series, toolholder style RF151.23-16-40.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Before mounting or changing tooling, ensure the machine is fully powered down, the spindle is stopped, and all stored energy is released per your facility lockout/tagout procedures. Secure the shank fully within the tool block to the recommended engagement depth for the machine platform in use. Verify insert seating and clamp engagement before returning the machine to service.