Boneham CB00001148 Slip-fixed Drill Bushing 21/64 in Id

Product Description

The BONEHAM CB00001148 is a slip-fixed (SF) renewable drill bushing designed to guide cutting tools with precision in jig and fixture applications. Machined from steel and hardened to 60 to 65 HRC, this bushing delivers consistent bore alignment over repeated tool cycles. It features a 21/64-inch inside diameter with a tight tolerance of +0.0001 to +0.0005 inches, a 1/2-inch body outside diameter, and a 1-inch length under the head. The head outside diameter measures 51/64 inches with a 1/4-inch head height. Installation is handled by tooling and fixture professionals in manufacturing, metalworking, and machining environments.

This slip-fixed bushing is suited for use in drill jigs where the bushing must be locked in place during the machining operation but can be removed and replaced without scrapping the jig plate. The SF-style configuration, combined with LS-1 lock screw compatibility, makes it a standard choice for production drilling fixtures in both light and medium-duty machining setups. It conforms to ANSI standards, making it directly interchangeable with other ANSI SF-series bushings of the same dimensions.

Key Features

• Slip-fixed (SF) installation method locks bushing in place during drilling operations
• Steel construction hardened to 60 to 65 HRC for extended wear life
• Inside diameter tolerance of +0.0001 to +0.0005 inches ensures precise tool guidance
• LS-1 compatible lock screw secures the bushing in the jig liner
• Renewable design allows bushing replacement without jig plate replacement
• Conforms to ANSI standards for direct dimensional interchangeability

Compatibility

Designed as an ANSI-standard SF-series slip-fixed renewable drill bushing. Compatible with LS-1 lock screws. Fits standard jig liner bores with a 1/2-inch body outside diameter per ANSI specifications.

Installation Notes

Installation is typically performed by toolmakers or fixture technicians using a bushing press or arbor press to seat the bushing into the liner. The LS-1 lock screw should be installed and tightened per fixture engineering specifications to prevent rotation during the cutting operation. Always ensure the jig liner bore and mating surfaces are clean and free of burrs before pressing the bushing into position. Follow applicable shop safety and workholding procedures when handling hardened components.