Boneham L17628 Headless L Drill Bushing Liner Alloy Steel

Product Description

The BONEHAM L17628 is a headless L-style drill bushing liner used in fixed and renewable drill jig applications. It provides a precision-bore sleeve that accepts a press-fit renewable drill bushing, allowing worn bushings to be swapped out without replacing the entire jig plate. The L17628 features a 2.25-inch inside diameter and a 2.75-inch body outside diameter, with a 1.75-inch liner length. Constructed from alloy steel, it delivers the hardness and wear resistance required for repetitive drilling operations in production and tooling environments. Machinists and toolmakers are the primary installers in machine shops and manufacturing facilities.

This liner is suited for production drilling jigs where high-volume hole operations demand consistent locating accuracy. It is pressed into the jig plate body and remains in place while renewable drill bushings are exchanged as needed. Typical applications include metal fabrication, assembly tooling, and custom drill fixture builds where the inside diameter of 2.25 inches accommodates large-diameter drill, reamer, or boring tool guidance.

Key Features

• 2.25-inch inside diameter for large-diameter tooling guidance
• 2.75-inch body outside diameter for secure press-fit retention in jig plates
• 1.75-inch liner length provides stable tool engagement depth
• Alloy steel construction delivers hardness and wear resistance for production use
• Headless L-style design accepts renewable drill bushings for extended jig service life
• Press-fit installation method for permanent, low-maintenance seating in the jig body

Compatibility

Designed as an OEM-style replacement or new-installation liner for L-series headless drill bushing jig systems requiring a 2.25-inch inside diameter and press-fit mounting.

Installation Notes

Installation is performed by machinists or toolmakers using a hydraulic or mechanical press to seat the liner flush or to the specified depth in the jig plate bore. The mating jig plate bore must be machined to the appropriate interference-fit tolerance before pressing to avoid cracking or misalignment. Power down all associated machine tools and secure the jig plate in a fixture or vise before pressing. Do not drive the bushing with impact tools, as this can damage the bore or distort the liner.