Boneham AM00000237 Hm Press Fit Headless Drill Bushing

Product Description

The BONEHAM AM00000237 is a press fit headless drill bushing classified under industry code HM, designed to guide drill bits with precision in production drilling and machining operations. The bushing features an inside diameter of 6.7 inches and a body outside diameter of approximately 0.472 inches (12.00 mm), with an overall length of approximately 0.630 inches (16.00 mm). Manufactured from steel, it is intended for permanent installation in jig plates and fixture bodies where a flush, headless profile is required. Machinists and tool-and-die professionals install this type of bushing to maintain accurate hole location across repeated drilling cycles.

This bushing is suited for use in drill jig fixtures in light to medium production environments. The headless HM-series design allows the bushing to sit flush with the jig plate surface, making it appropriate for applications where a flanged head would interfere with workpiece clearance or clamping. It is typically installed in precision-reamed holes in hardened or unhardened jig plates. The non-renewable designation means it is press fitted as a permanent installation and is not intended for field removal and replacement during normal service.

Key Features

• HM industry code classification for headless press fit drill bushing applications
• 6.7-inch inside diameter for precise drill bit guidance
• Steel construction provides durability under repeated drilling operations
• Headless design sits flush with jig plate surface, eliminating interference with workpiece or clamps
• Permanent press fit installation method for stable, long-term fixture use
• Non-renewable design suited for fixed jig plate assemblies

Compatibility

Designed as an OEM-style replacement or new-installation component for HM-series headless press fit drill bushing applications in standard jig and fixture plates.

Installation Notes

Installation is performed by qualified machinists or tool-and-die technicians using an arbor press or hydraulic press to drive the bushing into a precision-reamed hole in the jig plate. The receiving hole must be reamed to the correct tolerance to achieve the required interference fit. Do not strike the bushing directly with a hammer, as this can damage the bore geometry. Ensure the fixture plate is properly supported during pressing to avoid distortion.