Boneham SP00002676 Headless L Drill Bushing Liner

Product Description

The BONEHAM SP00002676 is a headless L-type drill bushing liner designed to provide a precise, renewable guide interface in jig plate applications. With a 5/16-inch inside diameter and a 1/2-inch body outside diameter, this liner installs via press fit into a jig plate and accepts a hardened slip or fixed renewable bushing in the L configuration. The tool steel construction is hardened to 60-65 HRC, delivering the wear resistance required for repeated drill cycles without dimensional degradation. Machinists, tool and die makers, and fixture builders rely on this component to maintain hole-location accuracy across production runs.

This liner is suited for use in drill jig fixtures in both machine shop and production tooling environments. It serves as the permanently installed master bushing that remains in the jig plate while renewable drill bushings are swapped out during tooling changeovers. The headless design keeps the top face flush with the jig plate surface, making it appropriate for applications where clearance above the plate is limited or where a snag-free surface is required.

Key Features

• 5/16-inch inside diameter accepts standard L-series renewable bushings
• 1/2-inch body outside diameter for press-fit installation into jig plate bores
• 5/8-inch liner length provides stable engagement depth in the jig plate
• Hardened steel construction at 60-65 HRC resists wear during extended production use
• Headless design sits flush with the jig plate surface
• Press-fit installation method ensures secure, non-rotating seating

Compatibility

Designed as an OEM-style liner for use with standard L-series headless drill bushing systems in tooling jig plates requiring a 1/2-inch press-fit bore.

Installation Notes

Installation is typically performed by toolmakers or machinist trades using an arbor press to achieve proper press-fit seating. The jig plate bore should be finish-reamed to the appropriate tolerance before installation to ensure correct interference fit. Do not drive the liner in with impact tools, as this can damage the bore or distort the liner. Verify liner seating depth and flush condition before placing the fixture into service.