Boneham LT284HG Headless L Drill Bushing Liner Press Fit

Product Description

The BONEHAM LT284HG is a headless liner-type drill bushing designed for use in jig plates and fixture applications requiring precise hole guidance during drilling, reaming, or boring operations. With a 0.25 inch inside diameter, a 7/16 inch (0.4375 inch) body outside diameter, and a liner length of 0.25 inch, this bushing seats via press fit installation into a master bushing or directly into a hardened jig plate. Constructed from alloy steel, the LT284HG provides reliable wear resistance and dimensional stability under repeated tooling cycles. It is installed by machinists and tooling professionals working with drill jig setups in production or maintenance environments.

The LT284HG liner bushing is suited for fixed-jig drilling applications where a headless profile is required to sit flush within the jig plate surface. Its press fit design keeps the bushing securely retained without mechanical fasteners or locking mechanisms. This makes it appropriate for high-volume drilling operations where tool guidance accuracy is critical. The compact liner length is well matched to thin jig plates or close-clearance tooling fixtures common in metal fabrication and precision machining shops.

Key Features

• 0.25 inch inside diameter for precise drill and reamer guidance
• 7/16 inch (0.4375 inch) body outside diameter for standard liner seat fitment
• 0.25 inch liner length suits thin jig plates and compact fixture layouts
• Headless profile installs flush with jig plate surface
• Press fit installation provides secure, fastener-free retention
• Alloy steel construction delivers wear resistance under repeated tooling use

Compatibility

Designed as an OEM-style replacement or new-installation liner bushing for drill jig fixtures requiring a headless L-series bushing with a 0.25 inch ID and 7/16 inch OD press fit seat.

Installation Notes

Press fit installation requires an arbor press or similar tooling to seat the bushing without damaging the bore or the bushing OD. Ensure the receiving hole in the jig plate is machined to the correct tolerance for the specified press fit before installation. Do not hammer the bushing in freehand, as this can cause misalignment or bore damage. Installation is typically performed by a machinist or tooling technician.