Sandvik Coromant 5749396 Indexable Boring Bar 1 in Bore

Product Description

The SANDVIK COROMANT 5749396 is an indexable boring bar designed for internal boring and turning operations on CNC lathes and manual turning centers. Built to the SI toolholder style within the Top Lok series, this right-hand cut bar features a 5/8-inch shank diameter and a 1-inch minimum bore diameter, making it well suited for tight-bore applications requiring consistent insert positioning. The tool body is constructed from steel and uses screw clamping to secure TLG-2125L inserts, delivering repeatable rigidity at the cutting edge. It carries a neutral rake angle of 0 degrees and a lead angle of 0 degrees, providing predictable chip geometry across a range of workpiece materials. Licensed machinists and CNC turning technicians are the primary installers.

This boring bar fits production turning environments where multi-use flexibility is required. The SI-CTLHOR-05102 catalog designation identifies it as a Top Lok series holder capable of both boring and turning operations with a single toolholder. The 8-inch overall length provides ample reach into deep bore features, while the 0.5-inch center-to-cutting-edge dimension supports precise diameter control. It accepts one insert at a time and does not include coolant-through capability, making it appropriate for dry or externally flooded cutting setups common in general machining shops.

Key Features

• SI toolholder style, Top Lok series — compatible with TLG-2125L indexable inserts secured by screw clamping
• 1-inch minimum bore diameter supports both diamond and triangle insert cartridge configurations at that entry diameter
• 8-inch overall length with 0.5-inch center-to-cutting-edge for reach into deeper bore features
• Neutral rake (0 degrees) and 0-degree lead angle for predictable cutting geometry across common workpiece materials
• Multi-use application: configured for both boring and turning operations without retooling the bar
• Steel construction, right-hand cut, no coolant-through — suited for external flood coolant or dry machining setups

Compatibility

Designed for use with TLG-2125L indexable inserts. Catalog designation SI-CTLHOR-05102 identifies this bar within the SANDVIK COROMANT Top Lok series for SI-style toolholders. No additional specific machine or system compatibility data was provided in the product input.

Installation Notes

Installation should be performed by a qualified machinist or CNC turning technician with the machine in a full stop, locked-out state before mounting or changing the toolholder. Confirm shank-to-turret bore fit and appropriate stick-out length before securing. Follow the machine tool manufacturer torque specifications for the specific turret or tool block in use — do not rely on generic values. Inspect insert seating and screw engagement before returning the machine to cycle.