Boneham AM00000221 Drill Bushing Hm 6.3 in Id

Product Description

The BONEHAM AM00000221 is a press fit headless drill bushing in the HM industry series, designed to guide drill bits and other cutting tools with precision in jig and fixture applications. Manufactured from steel and hardened to 60 to 65 HRC, this bushing provides long service life under repeated drilling cycles. The inside diameter is 6.3 inches with a tolerance of +0.005/+0.014 mm, ensuring consistent hole location accuracy. Machinists, toolmakers, and production engineers rely on this type of bushing as a fixed liner in drilling jigs where tool guidance must remain repeatable across high-volume operations.

This bushing is suited for use in drill jig plates and fixture bodies in both production and maintenance machining environments. The headless design allows the bushing to sit flush within the jig plate, making it appropriate for applications where a protruding flange would interfere with workpiece contact or clamping. The press fit installation method means no secondary locking hardware is required once the bushing is seated. It is not renewable, so it is intended for permanent installation in fixed-location tooling setups.

Key Features

• HM industry series headless drill bushing for permanent press fit installation
• Steel construction hardened to 60 to 65 HRC for extended tool life
• Inside diameter of 6.3 inches with tight tolerance of +0.005/+0.014 mm for accurate tool guidance
• Flush headless profile suits applications where flange clearance is limited
• Non-renewable design for fixed, high-repeat jig and fixture use
• Meets ANSI standards for drill bushing dimensions and performance

Compatibility

Designed as an OEM-style replacement or direct installation component for drilling jigs and fixtures requiring an HM series press fit headless bushing with a 6.3-inch inside diameter.

Installation Notes

Press fit bushings are typically installed by toolmakers or machinists using an arbor press or hydraulic press to seat the bushing flush and square within the jig plate bore. Ensure the jig plate bore is machined to the correct interference fit tolerance before pressing the bushing in place. Once installed, this bushing is not intended to be removed or replaced. Follow applicable shop safety procedures and use appropriate eye protection when pressing components.