Boneham SF208FC Slip-fixed Drill Bushing 0.166 in Id Steel

Product Description

The BONEHAM SF208FC is a slip-fixed drill bushing designed to guide cutting tools accurately during machining and drilling operations. Built to industry code SF, this bushing features a 0.166 inch inside diameter (wire gauge #19) and a 5/16 inch body outside diameter, with a length under head of 1/2 inch. Constructed from steel, it delivers the wear resistance and dimensional stability required in production tooling environments. The headed design seats firmly in a drill jig, and the renewable construction allows it to be replaced without replacing the jig liner. A licensed machinist or tooling technician handles installation and replacement in standard shop or manufacturing settings.

This bushing is suited for use in drill jigs where repeatable hole location accuracy is required across production runs. The slip-fixed style allows the bushing to be pressed in and locked in place during a drilling operation, making it appropriate for single-operation setups where the bushing remains stationary throughout the cut. It accepts an LS-1 compatible lock screw to secure it in the jig body. Typical applications include metalworking, fabrication, and precision machining environments where controlled tool guidance is critical.

Key Features

• Slip-fixed (SF) bushing style for single-operation, stationary tool guidance
• 0.166 inch inside diameter (wire gauge #19) with a tight tolerance of +0.0001 to +0.0004 inches
• 5/16 inch body outside diameter and 1/2 inch length under head for compact jig integration
• Steel construction for durability and wear resistance in production tooling
• Headed design with 35/64 inch head outside diameter and 1/4 inch head height for positive seating
• Renewable bushing — replaceable in the field without replacing the jig liner
• LS-1 compatible lock screw interface for secure retention during operation

Compatibility

Designed for use with LS-1 compatible lock screws in standard slip-fixed drill jig applications. Consult your jig design specifications to confirm liner and lock screw fitment before installation.

Installation Notes

Installation is typically performed by a machinist or tooling engineer using a bushing press to seat the bushing flush and square in the jig body. Ensure the jig liner bore is clean and within specified tolerances before pressing in the bushing. Secure with an LS-1 compatible lock screw to prevent rotation or withdrawal during the drilling cycle. Do not hammer the bushing directly without a proper press fit driver, as this can damage the head seating surface or alter bore geometry.