Boneham SF3212GH Slip-fixed Drill Bushing 0.2055 in Id

Product Description

The BONEHAM SF3212GH is a slip-fixed drill bushing designed to guide cutting tools with precision in jig and fixture applications. Built to the SF industry code, it features an inside diameter of 0.2055 inches with a tight tolerance of +0.0001 to +0.0004 inches, a body outside diameter of 0.5000 inches, and a length under head of 0.75 inches. Manufactured from steel and hardened to 60 to 65 HRC, this bushing delivers the wear resistance required for repeated drilling operations. It includes a head and is compatible with the LS-1 lock screw for secure retention in the bushing liner. Installation and removal do not require pressing, making it suitable for applications where bushings are changed between operations.

This bushing is used in drill jig fixtures across metalworking, machining, and fabrication environments. The slip-fixed design allows the bushing to be installed and locked in place using a lock screw, making it appropriate for single-operation setups where the bushing remains fixed during the drilling cycle. It is sized for wire gauge number 5 drill applications and conforms to ANSI standards, making it a direct fit for standard jig bushing liners used in production and toolroom settings.

Key Features

• Slip-fixed SF-type bushing with LS-1 lock screw compatibility for secure positioning
• Inside diameter of 0.2055 inches with tolerance of +0.0001 to +0.0004 inches for precise tool guidance
• Steel construction hardened to 60 to 65 HRC for extended wear life
• Head outside diameter of 0.797 inches (51/64 inch) and head height of 0.25 inches
• Renewable bushing design allows replacement without scrapping the liner
• Conforms to ANSI standards for interchangeability with standard jig bushing components

Compatibility

Designed as an ANSI-standard SF-type slip-fixed drill bushing compatible with standard jig bushing liners that accept LS-1 lock screws.

Installation Notes

Installation is performed by machinists or toolmakers as part of jig and fixture setup. The bushing slides into the liner and is secured with an LS-1 lock screw — ensure the screw is fully engaged before beginning any drilling operation. Always verify that the jig plate and liner bore are clean and free of chips before seating the bushing. Follow applicable shop safety procedures and de-energize or secure any powered equipment before servicing fixtures.