Boneham AM00000412 Press Fit Headless Drill Bushing Pm

Product Description

The BONEHAM AM00000412 is a press fit headless drill bushing with industry code PM, designed to guide drill bits and cutting tools with precision in jig and fixture applications. Manufactured from steel, this bushing features an inside diameter of 11.5 inches, a body outside diameter of 18.00 millimeters, and an overall length of 12.00 millimeters. Installation requires pressing the bushing directly into a drill jig plate without a locking collar or head flange, providing a flush, low-profile seating. Machinists, tool-and-die makers, and precision fabricators install this type of bushing in production drilling operations where repeatable hole location accuracy is required.

This PM-coded headless drill bushing is suited for use in drill jigs across light to medium production environments. Its steel construction provides the hardness and wear resistance needed to maintain bore geometry through repeated drill passes. The headless press fit design makes it appropriate for applications where the bushing must sit flush with or below the jig plate surface, and where the plate thickness and hole tolerance are matched to the bushing outer diameter for a secure interference fit.

Key Features

• Press fit installation method - no locking collar or head flange required
• PM industry code designation for standardized replacement and sourcing
• 11.5-inch inside diameter for precise drill guide fit
• Steel construction for hardness and wear resistance in production use
• Not renewable - intended as a permanent or semi-permanent jig component
• Compact body at 18.00 millimeters outside diameter and 12.00 millimeters overall length

Compatibility

Designed as an OEM-style replacement or new-build component for drill jigs and fixtures requiring a PM-coded press fit headless bushing with an 11.5-inch inside diameter.

Installation Notes

Press fit bushings are typically installed by a machinist or tool-and-die maker using an arbor press to drive the bushing squarely into the jig plate bore. The receiving hole must be machined to the correct interference fit tolerance to ensure the bushing does not spin or pull out during service. Do not hammer the bushing in without a proper press and guide - misalignment during installation will damage the bore geometry. Remove all chips and debris from the jig plate bore before pressing the bushing into place.