Boneham L8828OR Headless L Drill Bushing Liner 1in Id

Product Description

The BONEHAM L8828OR is a headless L-style drill bushing liner used to guide and locate drill bits with precision in jig plate assemblies. This liner accepts a renewable drill bushing and is installed into the jig body via press fit, providing a stable, permanent bore for repeated drilling operations. It features a 1-inch inside diameter, a 1-3/8-inch body outside diameter, and a 1-3/4-inch liner length. Machined from alloy steel and hardened to 60-65 HRC, it delivers the wear resistance required for sustained production drilling environments. Licensed toolmakers and fixture builders are the primary installers of this component.

This liner is suited for use in drill jig plates where a fixed liner seat is needed to accept interchangeable slip-renewable or press-fit renewable bushings. It is commonly used in both production machining and fabrication shops where tight positional tolerances must be held across multiple part runs. The headless design keeps the liner flush or sub-flush with the jig plate surface, making it appropriate for applications where clearance above the plate face is restricted.

Key Features

• 1-inch inside diameter for compatible renewable drill bushing fitment
• 1-3/8-inch body outside diameter for press fit into standard jig plate bore
• 1-3/4-inch liner length for secure engagement depth in the jig body
• Alloy steel construction hardened to 60-65 HRC for long service life
• Headless design allows flush installation where above-plate clearance is limited
• Press fit installation method locks liner in place without fasteners

Compatibility

Designed as an OEM-style replacement or original-installation liner for drill jig assemblies requiring a headless L-series liner with a 1-inch inside diameter and press fit retention.

Installation Notes

Installation is performed by toolmakers or machinist-level trades using an arbor press or hydraulic press to drive the liner into a precision-bored hole in the jig plate. The receiving bore must be sized to the liner manufacturer's press fit tolerance specification before installation. Once pressed in, the liner should not be removed, as the headless design is intended for permanent seating. Inspect bore alignment before pressing to avoid cocking the liner during installation.