Boneham L4822LK Headless L Drill Bushing Liner

Product Description

The BONEHAM L4822LK is a headless L-type drill bushing liner designed to guide cutting tools with precision in jig and fixture applications. With a 1/2-inch inside diameter, a 3/4-inch body outside diameter, and a liner length of 1-3/8 inches, this bushing installs via press fit into a jig plate or fixture body. Constructed from alloy steel hardened to 60-65 HRC, it provides the wear resistance required for repetitive drilling, reaming, and boring operations in production environments. Machinists, toolmakers, and fixture builders work with this component when building or maintaining drill jigs.

The L4822LK is suited for use in drill jig assemblies where a renewable liner arrangement is required. The headless L-style body allows it to seat flush within a master bushing or directly in a plate when clearance is limited. Typical applications include production drilling fixtures in metalworking and fabrication shops where hole location accuracy must be maintained across high cycle counts. Its press fit installation method makes it compatible with standard jig plate configurations used across general machining environments.

Key Features

• 1/2-inch inside diameter for precise tool guidance
• 3/4-inch body outside diameter fits standard liner bores
• 1-3/8-inch liner length provides adequate tool support depth
• Alloy steel construction hardened to 60-65 HRC for long service life
• Press fit installation for secure, stable seating in jig plates
• Headless L-style profile allows flush or low-clearance mounting

Compatibility

Designed as an OEM-style replacement or new-build component for standard drill jig and fixture assemblies requiring an L-type headless liner with a 1/2-inch inside diameter and 3/4-inch outside diameter press fit configuration.

Installation Notes

Installation is typically performed by toolmakers or machinist personnel using an arbor press to achieve the specified press fit. Power down all associated machinery before servicing or replacing jig components. Ensure the receiving bore is clean, free of burrs, and within the specified tolerance before pressing the liner into position. Do not hammer the liner directly without a proper driver to avoid damaging the bore or liner face.