Sandvik Coromant 5734143 Indexable Boring Bar 3/4 in Shank

Product Description

The SANDVIK COROMANT 5734143 is an indexable boring bar in the CoroTurn 107 series, designed for internal boring and turning operations on CNC lathes and machining centers. Built from solid carbide, the bar delivers the rigidity and vibration resistance needed for tight-tolerance internal features. It accepts CCMT 32.52 inserts secured by screw clamping, provides a neutral rake angle of 0 degrees, and has a minimum bore diameter of 0.9291 inches (23.60 mm). The 3/4-inch shank diameter and 10-inch overall length suit a wide range of production and jobshop boring setups where consistent insert indexing and coolant-through capability are priorities.

This boring bar is intended for machining professionals — machinists, toolroom technicians, and CNC operators — working in ferrous and non-ferrous materials where controlled chip formation and repeatable bore quality are required. The multi-use design supports both boring and turning applications from a single holder. The coolant-through feature directs fluid directly to the cutting zone, making it well suited for deep-bore applications or materials that generate significant heat at the cutting edge. Installation is straightforward in any lathe or machining center with a standard 3/4-inch boring bar holder or block.

Key Features

• Solid carbide construction for maximum rigidity and vibration damping in small-bore applications
• Coolant-through capability directs fluid to the cutting edge for improved tool life and chip evacuation
• Screw clamping insert retention provides secure, repeatable seating of CCMT 32.52 inserts
• Neutral rake angle (0 degrees) suits a broad range of workpiece materials
• Multi-use holder supports both boring and turning operations
• Right-hand cut orientation with 3/4-inch neck diameter matching the shank diameter for consistent tool setup

Compatibility

Designed for use with CCMT 32.52 inserts (3/8-inch inscribed circle). Part of the SANDVIK COROMANT CoroTurn 107 series. Fits standard 3/4-inch boring bar holders and tool blocks on CNC lathes and machining centers configured for that shank size.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Before mounting or insert changes, ensure the machine spindle is in the locked or off state and all motion has stopped. Secure the bar in a 3/4-inch boring bar holder to the machine manufacturer's recommended clamping torque specification. Connect coolant-through lines if the machine tool and holder support internal coolant delivery, and verify coolant pressure is within the machine and toolholder manufacturer limits before running.