Boneham AM00000330 Drill Bushing Hm 0.366 Inch Id

Product Description

The BONEHAM AM00000330 is a press fit headless drill bushing conforming to industry code HM. Machined from steel and hardened to 60 to 65 HRC, this bushing guides drill bits with precision in jig and fixture applications. It installs without a retaining head, seating flush when pressed into a prepared hole in a drill jig plate. The 0.366-inch (9.30 mm) inside diameter and ANSI-standard dimensions make it a direct-fit choice for tooling setups that demand repeatable hole location accuracy. Machinists and toolmakers are the primary installers of this component in production and maintenance shop environments.

This bushing is suited for use in drill jigs on production floors, machine shops, and toolroom fixtures where consistent hole placement is required across multiple workpieces. The headless design keeps the bushing face flush with the jig plate surface, which is preferred when clearance above the plate is limited or when a smooth top surface is needed for workpiece seating. It is not renewable and is intended for permanent press-in installation into the jig body.

Key Features

• Press fit installation — no retaining head, seats flush with jig plate surface
• Steel construction hardened to 60 to 65 HRC for wear resistance in repetitive drilling operations
• Inside diameter tolerance of +0.005/+0.014 mm for precise drill guidance
• Conforms to ANSI standards for HM-series headless drill bushings
• Compact body: 0.591-inch outside diameter, 0.787-inch overall length
• Non-renewable design for permanent installation in drill jig bodies

Compatibility

Designed as an OEM-style replacement and standard tooling component for drill jigs and fixtures requiring an ANSI HM-series press fit headless bushing with a 0.366-inch inside diameter.

Installation Notes

Installation is performed by machinists or toolmakers using an arbor press or hydraulic press to seat the bushing into a precision-bored hole in the jig plate. The receiving hole must be bored to the mating tolerance for the HM-series outside diameter before pressing in. Never drive the bushing in with a hammer, as this can damage the ID or distort the bushing body. Once pressed in, the bushing is not intended to be removed and reused.