Sandvik Coromant 5726336 Boring Grooving Bar Holder

Product Description

The SANDVIK COROMANT 5726336 is a boring and grooving bar holder designed for precision internal turning and grooving operations on CNC lathes and turning centers. It features a 5mm inside diameter, a 1.0000-inch outside diameter, and an overall length of 110mm (4.3310 inches). The 25.40mm head diameter and through-coolant capability make it well-suited for tight-tolerance work where chip evacuation and heat control are critical. This holder is part of the CoroTurn XS series, which targets small-diameter internal machining applications. It is installed by CNC machinists and tooling specialists on production and job-shop turning equipment.

This holder is intended for small-bore internal turning and grooving operations where access is restricted and precision is required. The CoroTurn XS series is engineered for machining small components and miniature parts on sliding-head and fixed-head lathes as well as standard turning centers. Through-coolant delivery supports extended tool life and improved surface finish in both continuous and interrupted cuts. The compact geometry makes it appropriate for production environments running small-diameter bores in steel, stainless, and other machinable alloys.

Key Features

• 5mm inside diameter supports small-bore internal turning and grooving applications
• 1.0000-inch outside diameter for standard toolholder compatibility
• 110mm overall length provides reach for deeper bore access
• 25.40mm head diameter for rigid clamping and minimal deflection
• Through-coolant design improves chip evacuation and reduces cutting-zone heat
• Part of the CoroTurn XS series for precision small-component machining

Compatibility

Designed for use with the SANDVIK COROMANT CoroTurn XS series tooling system. Verify spindle and turret interface compatibility with your specific turning center or sliding-head lathe before installation.

Installation Notes

Installation should be performed by a qualified CNC machinist or tooling technician. Ensure the machine spindle is fully stopped and the control is in an e-stop or lockout state before mounting or removing the holder. Use calibrated torque tooling when securing the bar holder to the turret to maintain concentricity and avoid fretting. Confirm through-coolant passages are clear and aligned with the machine coolant supply before running the first cycle.