Boneham SF326JB Slip-fixed Drill Bushing 11/32 in Steel

Product Description

The BONEHAM SF326JB is a slip-fixed drill bushing conforming to industry code SF, designed to guide drill bits and other cutting tools with precision in jig and fixture applications. Built from steel hardened to 60 to 65 HRC, it provides a tight inside diameter tolerance of plus 0.0001 to plus 0.0005 inches for repeatable hole location accuracy. The 11/32 inch ID and 1/2 inch body outside diameter make it a compact, high-wear-resistance component suited for production drilling operations. The head-style design retains the bushing in a liner bushing without the need for press-fit installation, and the renewable construction allows field replacement when worn. An LS-1 compatible lock screw secures the bushing during use.

This bushing is used in drill jig assemblies across metal fabrication, tooling, and precision machining environments. Its slip-fixed configuration allows the bushing to be removed and replaced without disturbing the jig plate, making it well suited for operations that switch between drilling and reaming on the same hole location. Machinists, toolmakers, and fixture builders working in job shop or production settings are the primary installers. ANSI standards compliance ensures dimensional interchangeability with other SF-series components from compatible suppliers.

Key Features

• Slip-fixed installation method allows removal and replacement without jig plate rework
• Steel construction hardened to 60 to 65 HRC for extended wear life in production drilling
• Inside diameter tolerance of plus 0.0001 to plus 0.0005 inches ensures consistent hole location
• Head-style bushing retained by an LS-1 compatible lock screw
• Renewable bushing design supports in-field replacement
• ANSI-compliant SF industry code for dimensional interchangeability

Compatibility

Designed for use with LS-1 series lock screws in standard SF-code liner bushing assemblies meeting ANSI dimensional standards. Dimensionally interchangeable with other ANSI SF-series slip-fixed bushings of the same ID and body OD.

Installation Notes

Installation is performed by toolmakers or machinists working with drill jig assemblies. The bushing seats into a compatible liner bushing already pressed into the jig plate and is secured with an LS-1 lock screw. Ensure the jig fixture is clamped and the machine is powered down before replacing a worn bushing. Do not force the bushing into an undersized liner or modify the ID after hardening.