Accupro ACC-75-1/8 Boring Grooving Bar Holder

Product Description

The ACCUPRO ACC-75-1/8 is a boring and grooving bar holder designed for use with small-diameter boring bars in metal-cutting lathe and turning applications. It accepts a boring bar with a 1/8 inch inner diameter and fits into a 3/4 inch outer diameter tool station. The holder measures 2-3/4 inches overall length with a 0.88 inch head diameter, providing a compact, rigid setup for precision internal grooving and boring operations. Two lock-down screws secure the bar firmly, reducing chatter and maintaining repeatable tool position during cuts. Machinists and tool and die professionals install this holder on lathes and turning centers where small-bore work is required.

This bar holder is suited for light-duty internal grooving, ID turning, and small-bore finishing operations on manual and CNC lathes. The Series DH designation identifies its tool station compatibility and dimensional family. It is appropriate for job shop, production, and maintenance machining environments where consistent, accurate boring bar retention on small-diameter work is needed. The compact head diameter allows access to confined bore geometries without interference.

Key Features

• 1/8 inch ID accepts small-diameter boring bars for precision internal work
• 3/4 inch OD fits standard tool station sizes
• 2-3/4 inch overall length provides rigid, low-profile bar support
• 0.88 inch head diameter allows access to tight bore geometries
• Two lock-down screws for secure, repeatable bar clamping
• Series DH designation for consistent dimensional family compatibility

Compatibility

Designed as an OEM-style boring bar holder for use with 1/8 inch shank boring bars in Series DH tool stations on manual and CNC lathes accepting a 3/4 inch OD holder.

Installation Notes

Installation is performed by qualified machinists following shop safety procedures. Power down and lock out the lathe spindle before installing or adjusting the bar holder. Insert the boring bar to the recommended engagement depth and tighten both lock-down screws evenly to secure the bar without distortion. Verify bar runout and tool overhang before returning the machine to service.