Boneham AM00000889 Slip-fixed Drill Bushing Sfm 21mm Id

Product Description

The BONEHAM AM00000889 is a slip-fixed drill bushing classified under industry code SFM, designed to guide cutting tools accurately during drilling, reaming, and boring operations. It features a 21 mm inside diameter and a 30 mm body outside diameter, with a length under head of 45 mm. Manufactured as a renewable bushing, it can be removed and replaced without disturbing the jig body, making it well suited for production environments where tooling wears over time. Weighing 0.62 pounds, this bushing is a compact, durable component used in precision machining and fabrication fixtures.

This bushing is intended for use in drill jig applications across manufacturing, machining, and toolroom environments. The slip-fixed design allows the bushing to rotate freely when installed but lock against a retaining mechanism to prevent axial movement during cutting. It is appropriate for both light production runs and high-volume repetitive drilling where positional accuracy and tool alignment are critical. Installation is typically performed by toolmakers, machining technicians, and fixture builders working with standard jig plate assemblies.

Key Features

• Slip-fixed installation method allows removal and replacement without jig body modification
• Renewable bushing construction extends fixture service life
• 21 mm inside diameter for precise tool guidance
• 30 mm body outside diameter for stable press fit into jig liner
• 45 mm length under head provides extended tool guidance along the cutting path
• Classified under SFM bushing industry code for cross-reference compatibility

Compatibility

Designed as an OEM-style replacement slip-fixed drill bushing for use in standard SFM-coded jig liner assemblies where a 21 mm inside diameter renewable bushing is specified.

Installation Notes

Slip-fixed bushings are installed and removed by a qualified toolmaker or machining technician using appropriate bushing drivers and pullers. Ensure the jig liner bore is clean and free of burrs before installation. The locking mechanism must be properly engaged before commencing any cutting operation to prevent rotation or axial displacement. Always power down and secure all machine tooling before servicing or replacing bushings in a drill jig assembly.