Boneham AM00000307 Headless Drill Bushing Hm 8.75 in Id

Product Description

The BONEHAM AM00000307 is a press fit headless drill bushing in the HM industry code series, designed for precision hole-location guidance in jig and fixture applications. Manufactured from steel with a hardness rating of 60 to 65 HRC, this bushing provides consistent bore alignment and long service life under repeated drilling operations. The inside diameter is 8.75 inches, with a body outside diameter of 15.00 mm and an overall bushing length of 25.00 mm. It is installed without a head or locking collar, seating directly into the jig plate. Machinists, tool-and-die makers, and fixture builders specify this part where a flush, non-renewable bushing mounting is required.

This press fit headless drill bushing is used in production drilling jigs and machining fixtures across metalworking and fabrication environments. The headless design keeps the bushing flush with the jig plate surface, making it well suited for close-tolerance work where protruding flanges would interfere with workpiece clamping or tooling clearance. It is a non-renewable bushing, meaning it is permanently pressed into the liner or jig plate and not intended for routine field replacement. Applications span general machining shops, aerospace fabrication, and industrial tooling operations requiring ANSI-compliant drill guidance components.

Key Features

• HM industry code designation for standard press fit headless bushing geometry
• Inside diameter of 8.75 inches for precise drill and reamer guidance
• Steel construction hardened to 60 to 65 HRC for wear resistance
• Press fit installation method seats bushing flush without a head or collar
• Non-renewable design for permanent jig plate installation
• Meets ANSI standards for drill bushing geometry and tolerancing

Compatibility

Designed as an OEM-style drill jig component compatible with standard ANSI press fit liner plates and machining fixtures requiring an HM-series headless bushing with an 8.75-inch inside diameter.

Installation Notes

Installation should be performed by a qualified machinist or toolmaker using an arbor press to avoid bushing damage or bore distortion. Ensure the mating liner or jig plate bore is clean, within specified tolerances, and free of burrs before pressing. This is a non-renewable bushing and is not designed for removal after installation without risk of damage to the surrounding material. Always follow applicable shop safety procedures and consult fixture engineering documentation before pressing components into production tooling.