Sandvik Coromant 5734265 Grooving Cutoff Toolholder Left Hand

Product Description

The SANDVIK COROMANT 5734265 is an external indexable grooving and cutoff toolholder designed for precision parting and grooving operations on CNC lathes and turning centers. Cataloged under the T-Max Q-Cut series with style designation L151.21-16-30, this left-hand holder accepts N151.2-300-5E inserts secured by a clamp-style insert holding method. It supports groove widths from 3.00 mm to 4.15 mm and delivers a maximum depth of cut of 24.89 mm (0.98 inches). The 1 x 1 inch square shank provides a rigid, repeatable setup in standard toolpost or block-style holders. This toolholder is installed and serviced by machinists and CNC tooling technicians in production and job-shop turning applications.

This toolholder is suited for external grooving, undercutting, and cutoff operations on turned components in both general-purpose and production turning environments. The left-hand orientation makes it appropriate for applications requiring an approach from the tailstock side or for specific workholding configurations. The T-Max Q-Cut series is a widely used platform in industrial turning, applicable to a broad range of workpiece materials when paired with the correct insert grade. No coolant-through capability is present on this holder, so external coolant delivery should be planned accordingly.

Key Features

• Groove width range of 3.00 mm to 4.15 mm for consistent, repeatable grooving and parting
• Maximum depth of cut of 24.89 mm (0.98 inches) for deep grooving and cutoff capability
• Left-hand orientation for tailstock-side or specialized workholding setups
• Clamp-style insert retention accepts N151.2-300-5E inserts for secure, vibration-resistant cutting
• 1 x 1 inch square shank (25.40 mm x 25.40 mm) fits standard toolpost and block holders
• T-Max Q-Cut series platform with R/L151.20 toolholder style for broad system compatibility

Compatibility

This toolholder is compatible with N151.2-300-5E inserts and belongs to the T-Max Q-Cut series, style R/L151.20. It is designed for use in standard square-shank toolpost and block-style turning setups that accept a 1 x 1 inch (25.40 mm x 25.40 mm) shank.

Installation Notes

Installation is performed by a qualified machinist or CNC tooling technician. The machine spindle must be powered down and the turret or toolpost locked before mounting or removing the holder. Confirm that the insert seat is clean and free of chips before seating the N151.2-300-5E insert, and verify insert clamp engagement before resuming cutting. External coolant should be directed at the cutting zone, as this holder does not provide coolant-through delivery.