Boneham LT406XKQ Headless L Drill Bushing Liner 7/16 in

Product Description

The BONEHAM LT406XKQ is a headless L-type drill bushing liner designed to guide cutting tools with precision in jig and fixture applications. It features a 7/16 inch inside diameter and a 5/8 inch body outside diameter, with a 3/8 inch liner length. Constructed from alloy steel hardened to 60-65 HRC, this liner delivers the wear resistance required for repetitive drilling operations. Installation is accomplished via press fit, seating the liner firmly into a master bushing or directly into a jig plate without a head flange to interfere with workpiece clearance. It is intended for use by machinists, toolmakers, and maintenance professionals working with drill jigs.

The LT406XKQ liner is suited for production drilling setups where consistent hole location is critical. The headless profile allows the bushing to sit flush within the jig plate, making it appropriate for applications where a protruding flange would obstruct the workpiece or fixtures. This part is typically installed into a liner or master bushing assembly and is replaced as a wear component during routine jig maintenance to maintain hole-location accuracy across production runs.

Key Features

• 7/16 inch inside diameter for precise drill guidance
• 5/8 inch body outside diameter for press fit into standard liner bushings
• 3/8 inch liner length for compact jig plate installations
• Alloy steel construction hardened to 60-65 HRC for extended wear life
• Headless L-type design eliminates flange obstruction at the workpiece surface
• Press fit installation for secure, non-rotating seating in the receiving bore

Compatibility

Designed as an OEM-style replacement or standard component for L-type liner bushing assemblies used in drill jig fixtures requiring a 7/16 inch bore and 5/8 inch outside diameter press fit seating.

Installation Notes

Press fit installation requires an arbor press or hydraulic press to seat the liner without damage to the bore or bushing. Ensure the receiving bore is clean, within tolerance, and free of burrs before pressing the liner into place. Do not use a hammer directly on the bushing face. Follow applicable shop safety procedures and verify jig alignment after installation.