Boneham AM00000029 Drill Bushing Hm 12.5 in Id

Product Description

The BONEHAM AM00000029 is a press fit headless drill bushing manufactured to HM industry standards. It is used to guide drill bits and cutting tools with precision during machining and fabrication operations. The bushing features a 12.5-inch inside diameter and a steel construction that resists wear under repeated tooling passes. It is installed without a head flange, seating flush within the jig or fixture plate for low-profile applications. Machinists, tool-and-die makers, and CNC fixture builders install this type of bushing in drill jig assemblies where consistent hole placement and bore alignment are required across production runs.

This bushing is suited for use in drill jig fixtures across general metalworking, fabrication shops, and precision machining environments. The press fit installation method means the bushing is driven or pressed directly into the jig plate bore, where it holds position through interference fit without additional fasteners. It is appropriate for applications where a renewable bushing is not required and a permanent or semi-permanent guide is acceptable. The HM industry code designation aligns this part with standard drill bushing catalogs used in tooling and fixture design.

Key Features

• HM industry code classification for standard drill jig bushing interchangeability
• Press fit installation method — seats via interference fit, no fasteners required
• 12.5-inch inside diameter for large-bore drill guidance
• Steel construction for wear resistance under repeated tooling cycles
• Headless design provides flush, low-profile seating in fixture plates
• Non-renewable design suited for permanent or fixed jig installations

Compatibility

Designed as an OEM-style replacement or direct fitment for drill jig fixtures requiring an HM-coded press fit headless bushing with a 12.5-inch inside diameter.

Installation Notes

Press fit bushings are typically installed by a machinist or tooling technician using an arbor press or hydraulic press to drive the bushing into a precisely reamed bore. The receiving bore in the jig plate must be machined to the appropriate interference fit tolerance before installation. Ensure the fixture or workpiece is fully secured and all power to any associated machinery is off before servicing or replacing jig components. Do not use an impact hammer directly on the bushing face, as this can damage the bore geometry or distort the bushing body.