Iscar 4505825 Boring Bar Sleeve 1 in Bore 1.5 in Shank

Product Description

The ISCAR 4505825 is a boring bar sleeve designed to adapt a smaller-diameter boring bar to a larger machine spindle or toolholder. The sleeve accepts a 1-inch bore diameter and mounts to a 1.5-inch shank diameter, allowing shops to run standard boring bars in machines with larger spindle bores without replacing the bar itself. Overall length is 2.519 inches with a head diameter of 1.811 inches, keeping the assembly compact. Machinists and toolroom technicians install this type of adapter when consolidating tooling across machines or when a boring bar undersize for the spindle needs secure, concentric support during precision ID operations.

This sleeve is suited for use in CNC machining centers, manual boring mills, and lathes where a 1.5-inch shank interface is present. It bridges a 1-inch bore depth and is a practical solution in job shops and production environments running mixed tooling inventories. The sleeve is packaged individually and ordered as a single unit.

Key Features

• 1-inch bore diameter accommodates standard boring bars at that shank size
• 1.5-inch shank diameter fits larger spindle or toolholder interfaces
• 2.519-inch overall length keeps the assembly close to the spindle face
• 1.811-inch head diameter provides a positive stop and support surface
• 2.283-inch body length allows adequate contact area for rigidity and runout control
• Packaged as an individual unit with a minimum order quantity of 1

Compatibility

Designed as an OEM-style boring bar sleeve for tooling setups requiring a 1-inch bore and a 1.5-inch shank interface. No specific machine model compatibility was provided by the manufacturer for this part.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Ensure the machine spindle is fully stopped and the toolholder is removed from the machine before fitting the sleeve. Verify bore and shank surfaces are clean and free of burrs before assembly to maintain concentricity. Consult the machine tool manufacturer specifications for clamping torque and retention method appropriate to the spindle interface being used.