Boneham SF2012CQ Slip-fixed Drill Bushing 0.089 in Id Steel

Product Description

The BONEHAM SF2012CQ is a slip-fixed drill bushing designed for precision hole location in jig and fixture applications. It carries an industry code of SF and features an inside diameter of 0.089 inches (wire size 43) with an inside diameter tolerance of +0.0001 to +0.0004 inches. The body outside diameter measures 0.3125 inches (5/16 inches), and the length under the head is 0.75 inches (3/4 inches). Constructed from steel hardened to 60 to 65 HRC, this bushing delivers consistent bore geometry and wear resistance under repeated drilling cycles. Installation and replacement are handled by tooling setup technicians and machinists working with drill jigs.

This bushing is suited for use in drill jig assemblies where a renewable, slip-fixed configuration is required. The head type design and counterbored seating allow the bushing to be retained and removed without disturbing the liner bushing pressed into the jig plate. It is compatible with the LS-1 lock screw for positive retention during operation. Typical applications include production drilling, reaming, and similar hole-location operations in metalworking environments where repeatable accuracy is critical.

Key Features

• Slip-fixed SF industry code configuration for use with a pressed liner bushing
• Inside diameter of 0.089 inches (wire size 43) with tight tolerance of +0.0001 to +0.0004 inches
• Steel construction hardened to 60 to 65 HRC for extended service life
• Counterbored head seats flush and locks with LS-1 compatible lock screw
• Renewable bushing design allows field replacement without re-pressing the liner
• Conforms to ANSI standards for drill bushing dimensions and tolerances

Compatibility

Designed for use with LS-1 lock screws and compatible liner bushings in standard ANSI slip-fixed drill jig configurations. No additional specific model or system compatibility was stated in the product data.

Installation Notes

Installation is performed by tooling or fixture setup personnel. Before replacing or installing the bushing, ensure the drill press or machining center is powered down and the jig is secured. The slip-fixed bushing drops into a pre-installed liner bushing and is locked in place with an LS-1 lock screw. Do not force the bushing into the liner — correct fit should allow smooth slip engagement with no lateral play beyond specified tolerance.