Boneham AM00000529 Press Fit Headless Drill Bushing

Product Description

The BONEHAM AM00000529 is a press fit headless drill bushing manufactured from steel and designed to guide drill bits with precision during machining and fabrication operations. Carrying the industry code PM, this bushing features an inside diameter of 3.5 inches, a body outside diameter of approximately 0.276 inches (7.00 mm), and an overall length of approximately 0.472 inches (12.00 mm). It is permanently installed into a jig or fixture plate using a press fit method, eliminating the need for a locking collar or head flange. Machinists, tool and die makers, and production drilling operators rely on this type of bushing to maintain accurate hole location and extend the working life of drill jigs.

This drill bushing is suited for use in production drilling jigs, fixture plates, and tooling assemblies where a flush, headless profile is required. The headless design keeps the bushing surface flush with the jig plate, making it practical in close-tolerance applications where clearance above the workpiece surface is limited. It is appropriate for both light production and high-volume repetitive drilling operations in metal fabrication and machine shop environments.

Key Features

• Press fit installation method for permanent, secure seating in jig plates
• Headless design provides a flush profile with no projecting flange
• Inside diameter of 3.5 inches guides drill bits accurately for consistent hole location
• Steel construction for durability in repetitive drilling applications
• PM industry bushing code for standard identification and interchangeability

Compatibility

Designed as an OEM-style replacement or direct-fit component for drill jigs and fixture plates requiring a PM-coded press fit headless bushing with a 3.5-inch inside diameter.

Installation Notes

Press fit bushings are typically installed by a machinist or tool and die maker using an arbor press or hydraulic press sized for the bushing outside diameter. The receiving bore in the jig plate must be machined to the correct interference fit tolerance before installation. Once pressed in, this bushing type is not intended for removal or reuse. Verify inside diameter clearance against the drill bit shank before installation to confirm proper fit.