Boneham L488LK Headless L Drill Bushing Liner 1/2 in

Product Description

The BONEHAM L488LK is a headless L-type drill bushing liner designed for use in drill jig applications where precise hole location and repeatable accuracy are required. This liner features a 0.5 inch inside diameter and a 0.75 inch body outside diameter, with a liner length of 0.5 inches. Constructed from alloy steel and hardened to 60-65 HRC, it provides the wear resistance needed for sustained production drilling. Installation is achieved via press fit into the jig body. Toolmakers, machinists, and fixture builders are the typical installers.

This liner is suited for production and prototype machining environments where drill bushings must be retained securely in a jig plate or fixture body. It accepts renewable slip or fixed bushings in the standard L-series configuration, making it a common component in toolroom and manufacturing settings. The headless design sits flush with the jig plate surface, eliminating protrusion that could interfere with workpiece positioning or clamping setups.

Key Features

• Alloy steel construction hardened to 60-65 HRC for extended wear life
• 0.5 inch inside diameter with 0.75 inch body outside diameter
• 0.5 inch liner length for compact jig plate integration
• Headless design for flush installation and unobstructed workpiece contact
• Press fit installation method for secure, tool-free retention in jig body
• L-series industry standard liner code for broad renewable bushing compatibility

Compatibility

Designed as a standard L-series headless drill bushing liner for use with compatible renewable drill bushings in production jig and fixture applications.

Installation Notes

Press fit installation requires an arbor press or hydraulic press sized appropriately for the liner outside diameter. Ensure the jig plate bore is clean, free of burrs, and dimensioned to the correct interference fit tolerance before pressing. Do not drive the liner with a hammer directly on the bore face, as this can damage the seating surface. Installation and jig design typically follow toolroom or manufacturing engineering specifications.