Sandvik Coromant 5726350 Boring Grooving Bar Holder

Product Description

The SANDVIK COROMANT 5726350 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 bore, a 1-inch outside diameter shank, and a 110mm overall length, making it a compact and rigid tooling interface for small-bore applications. The head diameter measures 25.4mm. Through-coolant capability delivers cutting fluid directly to the cutting zone, improving chip evacuation and tool life in difficult-to-access bores. Machinists and CNC tooling technicians working in high-precision turning environments are the primary users of this holder.

This bar holder belongs to the CoroTurn XS series, which is engineered for small-part turning and Swiss-style or gang-tool lathe setups where compact tooling envelopes are critical. It is suited for both roughing and finishing passes in internal grooving and boring applications where bore diameters are tight and chip management is a priority. The through-coolant design makes it particularly effective in stainless steel, titanium, and other difficult-to-machine alloys where heat buildup at the cutting edge is a concern.

Key Features

• 7mm inside diameter and 25mm outside diameter for compact small-bore tooling setups
• 110mm overall length provides reach into shallow-to-moderate depth bores
• 25.4mm head diameter offers a rigid clamping interface for insert security
• Through-coolant design channels fluid directly to the cutting zone for improved chip evacuation and tool life
• Part of the CoroTurn XS series, optimized for small-part and Swiss-style turning applications
• Weight of 0.84 pounds supports easy handling and tool change efficiency

Compatibility

Designed for use within the SANDVIK COROMANT CoroTurn XS series tooling system. Compatible with machine tool setups that accept a 1-inch outside diameter boring bar shank and support through-coolant delivery at the turret or tool block interface.

Installation Notes

Installation should be performed by a qualified CNC machinist or tooling technician following the machine tool builder guidelines for boring bar mounting and torque procedures. Ensure the machine spindle or turret is fully locked out and de-energized before mounting or removing the holder. Verify through-coolant port alignment with the machine coolant supply before tightening to prevent restricted flow. Confirm clamping bore dimensions and coolant pressure compatibility with the machine specifications before use.