Boneham SF4816KQ Slip-fixed Drill Bushing 7/16 in Id

Product Description

The BONEHAM SF4816KQ is a slip-fixed drill bushing designed to guide cutting tools with precision in jig and fixture applications. Built to the SF industry designation, it features a 7/16 inch inside diameter and a 3/4 inch body outside diameter, with a 1 inch length under the head. The bushing is machined from steel and hardened to 60-65 HRC, providing the wear resistance required for repeated drill cycles. The headed design and renewable construction allow the bushing to be replaced without scrapping the fixture. Compatible with LS-1 lock screws, it locks securely in the liner bushing to prevent rotation during use. Installation is handled by toolmakers, fixture builders, and machinists.

This bushing is suited for production drilling, reaming, and similar guided tooling operations in metalworking and manufacturing environments. It fits into a press-fit liner bushing already installed in the jig plate, then locks in place with a compatible LS-1 set screw. The renewable design makes it a standard choice for high-cycle fixtures where bushings require periodic replacement without reworking the fixture body. It conforms to ANSI standards for drill bushing geometry and tolerancing.

Key Features

• SF slip-fixed bushing designation per ANSI standards
• Inside diameter tolerance of plus 0.0001 to plus 0.0005 inches for precise tool guidance
• Hardened steel construction at 60 to 65 HRC for extended wear life
• Renewable bushing design allows replacement without fixture modification
• Head outside diameter of 1-3/64 inches with 1/4 inch head height
• LS-1 lock screw compatible for secure, rotation-resistant seating

Compatibility

Designed as an ANSI-standard slip-fixed drill bushing for use with LS-1 compatible lock screws in standard liner bushing fixtures. No counterbore required.

Installation Notes

Installation is typically performed by toolmakers or fixture technicians. Ensure the mating liner bushing is properly pressed and secured in the jig plate before inserting this slip-fixed bushing. Use the appropriate LS-1 lock screw to prevent rotation during drilling operations. Do not force the bushing into an undersized liner; verify liner inside diameter matches the bushing body outside diameter before installation.