Boneham AM00000181 Drill Bushing Hm 5.25 Inch Id

Product Description

The BONEHAM AM00000181 is a press fit headless drill bushing classified under industry code HM, designed to guide drill bits and cutting tools with precision in jig and fixture applications. Manufactured from steel, this bushing features a 5.25 inch inside diameter and a 0.394 inch (10.00 mm) body outside diameter, with an overall length of 0.787 inch (20.00 mm). The headless design allows the bushing to sit flush within the drill jig plate, making it well suited for applications where a protruding flange would interfere with workpiece clearance. Machinists, toolmakers, and fixture builders install this type of bushing in production drilling, reaming, and boring setups.

This bushing is intended for use in drill jig plates and fixture assemblies where repeatable hole location and tool guidance are required. The press fit installation method locks the bushing permanently into the jig plate bore without fasteners, making it a non-renewable component. Typical applications include production machining environments in metalworking shops, fabrication facilities, and manufacturing plants where consistent hole placement across multiple workpieces is critical. This is a single-piece item sold individually.

Key Features

• HM industry code headless design sits flush with the jig plate surface
• 5.25 inch inside diameter for precise drill and reamer guidance
• Body outside diameter of 0.394 inch (10.00 mm) for press fit installation
• Overall bushing length of 0.787 inch (20.00 mm)
• Steel construction provides durability in repetitive drilling operations
• Non-renewable press fit design for permanent fixture integration

Compatibility

Designed as an OEM-style press fit headless drill bushing for use in standard drill jig plates and tooling fixtures requiring an HM-code bushing with a 5.25 inch inside diameter.

Installation Notes

This bushing is installed by a machinist or toolmaker using an arbor press or hydraulic press to drive the bushing into a precision-bored jig plate hole sized to the appropriate interference fit. Confirm the jig plate bore diameter matches the bushing outside diameter tolerance before pressing. Once installed, this is a non-renewable bushing and is not designed for removal and reuse. Follow shop safety procedures and power down any associated machinery before servicing or replacing tooling components.