Boneham SF326HL Slip-fixed Drill Bushing 0.261 in Id Steel

Product Description

The BONEHAM SF326HL is a slip-fixed drill bushing designed to guide cutting tools with precision in jig and fixture applications. It features a 0.261 inch inside diameter (letter size G), a 0.5 inch body outside diameter, and a 3/8 inch length under head. Constructed from steel with a hardness rating of 60 to 65 HRC, the SF326HL delivers the wear resistance required for repetitive drilling, reaming, and boring operations. The renewable design allows the bushing to be removed and replaced without reworking the fixture, and the head style with a 51/64 inch head outside diameter seats securely against the drill plate surface. Licensed machinists, toolmakers, and jig builders are the typical installers.

The SF326HL is suited for production and maintenance environments where consistent hole location is critical. It fits into liner bushings already installed in a drill jig and is retained by a lock screw using an LS-1 compatible screw. Applications include metal fabrication shops, machine shops, and MRO tooling operations where drill jigs see moderate to high cycle counts. The renewable construction makes it practical for fixtures that require periodic bushing replacement due to wear without retooling the entire jig plate.

Key Features

• 0.261 inch inside diameter (letter size G) with a tight tolerance of +0.0001 to +0.0005 inches for accurate tool guidance
• 60 to 65 HRC hardness rating provides strong wear resistance in repetitive drilling cycles
• Renewable bushing design allows field replacement without jig plate modification
• Head style with 51/64 inch head outside diameter and 1/4 inch head height seats flush against the drill plate
• LS-1 compatible lock screw retention secures the bushing during high-speed drilling operations
• Meets ANSI standards for slip-fixed bushing geometry and dimensional tolerances

Compatibility

Designed for use with LS-1 series lock screws and standard liner bushings conforming to ANSI slip-fixed bushing specifications in the SF industry code series.

Installation Notes

Slip-fixed drill bushings are installed and serviced by toolmakers, machinists, or maintenance technicians working with drill jigs. Before replacing a bushing, ensure all power to any associated machine tooling is shut off and secured. The bushing slip-fits into the liner bushing and is locked with an LS-1 compatible screw; use only the correct lock screw type to avoid damaging the head. Do not press-fit or hammer the bushing into a liner that shows wear beyond acceptable tolerance, as this can compromise hole location accuracy.