Boneham AM00000391 Headless Lm Drill Bushing Liner

Product Description

The BONEHAM AM00000391 is a headless LM-style drill bushing liner designed to guide and locate drill bushings with precision in jig and fixture applications. With a 26mm inside diameter, a 35mm body outside diameter, and an overall liner length of 36mm, this component provides a stable press-fit seat for renewable drill bushings in production drilling operations. Licensed machinists, toolmakers, and fixture builders rely on this type of liner to maintain consistent hole location across repeated drilling cycles. The part weighs approximately 0.62 pounds and ships as a single unit.

This liner is intended for use in drill jig assemblies where a permanent, headless installation is required flush with or below the jig plate surface. The headless design allows the liner to be pressed in without protruding above the plate face, making it well suited for close-tolerance fixture plates in metalworking and manufacturing environments. It is specified by industry code LM, which identifies the liner body dimensions within the standardized drill bushing system.

Key Features

• Headless design for flush or sub-flush installation in drill jig plates
• LM industry code designation for standardized dimensional compatibility within the drill bushing system
• 26mm inside diameter sized to accept matching renewable drill bushings
• 35mm body outside diameter for press-fit retention in the jig plate bore
• 36mm overall liner length provides positive axial location and bushing support

Compatibility

Designed as an OEM-style replacement or new-installation liner for drill jig fixtures requiring a headless LM-series drill bushing liner with a 26mm inside diameter and 35mm body outside diameter.

Installation Notes

Installation of drill bushing liners is typically performed by toolmakers or machinist-level trades using an arbor press and a properly sized driver to avoid damage to the liner bore. The receiving jig plate bore should be machined to the appropriate press-fit tolerance before installation. Do not hammer the liner directly without a driver, as this can distort the inside diameter. Verify bore alignment and cleanliness before pressing the liner into place.