Boneham SF3212JB Slip-fixed Drill Bushing 11/32 in Id

Product Description

The BONEHAM SF3212JB is a slip-fixed drill bushing conforming to industry code SF, designed to guide cutting tools with precision in jig and fixture applications. It features an inside diameter of 11/32 inches and a body outside diameter of 0.5 inches, with a head outside diameter of 51/64 inches and a head height of 1/4 inch. The body length under the head is 3/4 inches. Constructed from steel and hardened to 60 to 65 HRC, this bushing provides consistent bore alignment and long service life under repeated tooling operations. Installation and removal require no pressing, making it suitable for applications where bushings must be changed during a production run.

This bushing is intended for use in drill jigs, fixtures, and tooling plates where accurate hole location is critical. The slip-fixed design allows the bushing to be locked in place with a set screw during drilling, then removed when the operation is complete. It is compatible with the LS-1 lock screw, which secures the bushing in its liner bushing during use. Typical users include tool and die makers, machinists, and maintenance technicians working with ferrous and non-ferrous workpieces in both production and repair environments.

Key Features

• Slip-fixed (SF) design allows tool-free removal and replacement during multi-operation setups
• Inside diameter of 11/32 inches with a tolerance of +0.0001 to +0.0005 inches for tight tool guidance
• Steel construction hardened to 60 to 65 HRC for wear resistance under high-cycle drilling
• LS-1 compatible lock screw secures the bushing in the liner during use
• Renewable bushing design extends fixture life by allowing individual bushing replacement
• Meets ANSI standards for drill bushing dimensions and tolerances

Compatibility

Designed for use with ANSI-standard liner bushings and LS-1 series lock screws in drill jig and fixture applications. Consult the fixture design drawings to confirm liner bushing bore diameter and lock screw position match this SF-series bushing.

Installation Notes

Installation and removal are performed by hand or with a bushing puller tool — no press is required for slip-fixed bushings. Ensure the mating liner bushing bore and the lock screw slot are free of chips and debris before seating the bushing. Secure the LS-1 lock screw to the specified engagement before beginning the drilling operation. Always de-energize or lock out any power tooling before changing bushings in an active fixture.