Boneham SF2022EJ Slip-fixed Drill Bushing 0.144 in Steel

Product Description

The BONEHAM SF2022EJ is a slip-fixed drill bushing used to guide cutting tools with precision in jig and fixture applications. It carries industry code SF and features a 0.144 inch (No. 27 wire gauge) inside diameter held to a tight tolerance of +0.0001 to +0.0004 inches. The body outside diameter is 0.3125 inches (5/16 inch) and the length under head measures 1-3/8 inches. Constructed from hardened steel at 60 to 65 HRC, this bushing delivers the wear resistance required for repetitive drilling operations in production environments. A counterbored head design and LS-1 compatible lock screw keep the bushing securely seated under load.

This slip-fixed bushing is suited for use in drill jigs, fixture plates, and tooling setups found in machine shops, fabrication facilities, and production lines. The renewable design allows the bushing to be removed and replaced without disturbing the liner bushing already pressed into the jig plate, making it well-suited for operations that run multiple hole sizes or rotate tooling frequently. Machinists, toolmakers, and fixture builders are the primary users of this component.

Key Features

• Slip-fixed SF industry code design for use with a liner bushing and lock screw retention
• 0.144 inch ID (No. 27 wire gauge) with inside diameter tolerance of +0.0001 to +0.0004 inches
• Hardened steel construction at 60 to 65 HRC for extended tool-guide service life
• Counterbored head with 35/64 inch head OD and 1/4 inch head height
• Renewable bushing — removable and replaceable without disturbing the press-fit liner
• LS-1 compatible lock screw for secure, repeatable seating in the jig plate

Compatibility

Compatible with LS-1 lock screws. Designed as an OEM-style renewable slip-fixed drill bushing for use with standard liner bushings in jig and fixture tooling per ANSI standards.

Installation Notes

Installation is performed by toolmakers or machinists working with drill jig assemblies. Ensure the mating liner bushing is properly press-fit and seated in the jig plate before inserting the slip-fixed bushing. Secure with a compatible LS-1 lock screw to prevent rotation or axial movement during drilling. Verify inside diameter clearance against the drill or reamer shank before placing the bushing into service.