Sandvik Coromant 5726366 Boring Grooving Bar Holder

Product Description

The SANDVIK COROMANT 5726366 is a boring and grooving bar holder designed for precision internal turning and grooving operations on CNC lathes and turning centers. It features a 7mm inside diameter (0.2756 inches) and a 5/8-inch outside diameter (16.00mm), with an overall length of 54.99mm (2.165 inches). The 19mm head diameter and integrated through-coolant capability support consistent chip evacuation and thermal control during deep bore and grooving applications. Machinists and CNC operators working in tight-tolerance environments install this holder as part of the CoroTurn XS system for small-diameter internal machining.

This bar holder is suited for small-bore internal turning and grooving on both production and job-shop CNC turning equipment. The through-coolant design makes it particularly effective in applications where heat buildup and chip packing are concerns, such as deep internal grooving on steel, stainless, or cast-iron workpieces. It is sized for installations where access is limited and toolholder envelope dimensions are critical to avoid interference with workpiece geometry or machine turret clearance.

Key Features

• 7mm inside diameter (0.2756 inches) for small-bore internal machining applications
• 5/8-inch (16.00mm) outside diameter for standard holder interface compatibility
• 54.99mm (2.165 inch) overall length for compact tooling setups
• 19mm head diameter provides rigid support at the cutting zone
• Through-coolant design promotes chip evacuation and reduces heat at the insert
• Part of the CoroTurn XS series, built for small-diameter internal turning and grooving

Compatibility

Designed for use within the SANDVIK COROMANT CoroTurn XS system for small-diameter boring and grooving bar applications on CNC turning centers.

Installation Notes

Installation is performed by qualified CNC machinists or toolroom personnel. Power down and lock out the machine spindle before mounting or removing any toolholder. Ensure the holder bore and mating surfaces are clean and free of chips before seating. Verify coolant line connection and pressure rating before initiating through-coolant flow.