Boneham LT8012NW Headless L Drill Bushing Liner 7/8 in

Product Description

The BONEHAM LT8012NW is a headless L-style drill bushing liner designed to guide drill bits with precision in jig and fixture applications. It features a 7/8-inch inside diameter and a 1-1/4-inch body outside diameter, with a 3/4-inch liner length. Manufactured from alloy steel with a hardness rating of 60-65 HRC, this bushing liner delivers the wear resistance required for repetitive drilling operations. Installation is accomplished via press fit, securing the liner firmly into the jig plate without the need for fasteners. It is suited for machine shops, production environments, and tool rooms where consistent hole location accuracy is critical.

This liner bushing is used in drill jig assemblies where a renewable slip or fixed bushing rides inside a hardened liner. The L-type industry code designates its dimensional standards within the drill bushing system. Typical applications include production drilling, reaming, and boring operations in metalworking environments. Toolmakers, machinists, and fixture builders install this type of component when building or maintaining precision drill jigs for repetitive part production.

Key Features

• 7/8-inch inside diameter for direct bit or bushing guidance
• 1-1/4-inch body outside diameter for stable press fit seating
• 3/4-inch liner length suited to standard jig plate thicknesses
• Alloy steel construction hardened to 60-65 HRC for long service life
• Headless design for flush or below-surface mounting in jig plates
• Press fit installation method for secure, permanent liner placement

Compatibility

Designed as an OEM-style replacement or new-installation liner bushing for standard L-series drill jig systems conforming to the liner industry code designation L.

Installation Notes

Installation of drill bushing liners is typically performed by toolmakers or machinists using an arbor press to achieve the required press fit interference. The receiving bore in the jig plate must be machined to the correct tolerance before pressing in the liner to avoid damage to the bushing or plate. Ensure the press fit direction is straight and square to prevent cocking during installation. Follow applicable workplace tooling and fixturing standards for jig construction and maintenance.