Sandvik Coromant 5732648 Indexable Boring Bar 0.772 in

Product Description

The SANDVIK COROMANT 5732648 is an indexable boring bar from the CoroTurn 107 series, designed for internal boring and turning operations on CNC lathes and turning centers. Built from solid carbide, the bar offers rigidity and vibration resistance in demanding finish and semi-finish bore applications. It accepts a single TCMT 221 insert secured by screw clamping and features through-coolant capability to manage heat and chip evacuation at the cutting zone. The 5/8-inch shank diameter and 8-inch overall length suit a wide range of turret-style toolholders used in production turning environments. Licensed machinists and CNC operators are the primary end users.

This boring bar is suited for right-hand internal turning on ferrous and non-ferrous workpieces where a minimum bore diameter of 0.772 inches (19.6 mm) is required. The neutral rake and zero-degree lead angle make it appropriate for general-purpose boring passes where consistent insert engagement and predictable tool life are priorities. The CoroTurn 107 platform supports multi-use tooling — the same holder handles both boring and turning applications — reducing the number of dedicated toolholders needed in a setup. Typical installations are in production shops running medium to high volume turned components.

Key Features

• Solid carbide construction for high rigidity and reduced deflection in small-diameter bores
• Through-coolant capability directs cutting fluid directly to the insert tip
• Screw clamping insert retention for secure, repeatable indexing
• Accepts TCMT 221 inserts with a 1/4-inch inscribed circle
• Neutral rake (0 degrees) for broad material compatibility
• Multi-use design supports both boring and internal turning in one holder

Compatibility

Compatible with TCMT 221 series inserts. Designed for use within the SANDVIK COROMANT CoroTurn 107 tooling system and fits standard 5/8-inch bore turret pockets.

Installation Notes

Installation is performed by qualified CNC machinists or tool-room technicians. The machine spindle must be fully stopped and the turret de-energized before mounting or removing the bar from the toolholder pocket. Verify insert seating and screw torque according to the insert manufacturer's tooling manual before taking a cutting pass. Confirm coolant-through passages are clear and that the machine's coolant supply is rated for through-tool delivery before activating that feature.