Boneham SF488JN Slip-fixed Drill Bushing 0.368 in Steel

Product Description

The BONEHAM SF488JN is a slip-fixed drill bushing designed for precision hole location and tool guidance in jig and fixture applications. Built to ANSI standards, this SF-series bushing features a 0.368 inch inside diameter with a tight tolerance of +0.0001 to +0.0005 inches, a 0.75 inch body outside diameter, and a 0.5 inch length under head. Constructed from steel and hardened to 60 to 65 HRC, it delivers consistent, repeatable drill guidance under demanding production conditions. The headed design and renewable configuration allow it to be replaced without disturbing the jig plate. It is compatible with the LS-1 lock screw for secure retention during operation.

This bushing is used in drill jig plates across metalworking, machining, and fabrication environments. The slip-fixed design allows the bushing to be installed and locked in place through a compatible liner bushing, making it well suited for operations that require periodic bushing changes between production runs. Machinists, tool-and-die makers, and fixturing technicians install this part in both manual and CNC-assisted jig setups where accurate drill guidance is critical to hole quality and part repeatability.

Key Features

• SF-series slip-fixed bushing per ANSI standards for consistent jig fitment
• 0.368 inch inside diameter with inside diameter tolerance of +0.0001 to +0.0005 inches for precise drill guidance
• Steel construction hardened to 60 to 65 HRC for extended wear life
• Headed design with 1-3/64 inch head outside diameter and 1/4 inch head height
• Renewable bushing configuration supports quick changeout without jig plate rework
• LS-1 lock screw compatible for positive retention during drilling operations

Compatibility

Designed as an ANSI SF-series renewable slip-fixed bushing for use with standard liner bushings and LS-1 compatible lock screws in drill jig and fixture assemblies.

Installation Notes

Installation is typically performed by a machinist or tooling technician using a bushing press or arbor press to seat the bushing into a compatible liner. Ensure the jig plate and liner bushing are clean and free of chips before pressing the SF488JN into position. Secure the bushing with an LS-1 lock screw after installation. Do not hammer the bushing directly without a proper driver to avoid damaging the head or bore.