Boneham H266GH Press Fit Headed Drill Bushing Steel

Product Description

The BONEHAM H266GH is a Type H press fit headed drill bushing used to guide drill bits and cutting tools with precision in jig and fixture applications. It features a 0.2055 inch inner diameter, a body outer diameter of 13/32 inches, and a 3/8 inch length under the head. Constructed from steel, this bushing is pressed directly into a drill jig plate and held permanently in place without the need for a locking mechanism. The headed design provides a positive stop against the jig surface, keeping axial positioning consistent across repeated drilling operations. Machinists, tool and die makers, and production fixture builders are the primary users of this component.

This bushing suits applications where a permanent, non-renewable drill guide is acceptable and positional accuracy is critical. It is appropriate for use in steel or cast jig plates in light to medium production drilling environments. The inside diameter tolerance of +0.0001 to +0.0004 inches supports close-tolerance hole location in both manual and CNC-assisted jig drilling setups. The headed style is commonly specified when the bushing must register flush or slightly proud of the jig plate surface to prevent lateral movement under cutting forces.

Key Features

• Type H press fit installation — no locking collar or set screw required
• Inside diameter of 0.2055 inches with a tight tolerance of +0.0001 to +0.0004 inches for consistent hole guidance
• Body outer diameter of 13/32 inches and head outer diameter of 1/2 inch for positive seating in jig plate
• Head height of 5/32 inches provides a defined standoff reference above the jig surface
• Steel construction for durability under repeated drill-bit contact and chip abrasion
• Non-renewable design intended for permanent installation in the jig plate

Compatibility

Designed as an OEM-style press fit headed drill bushing suitable for standard drill jig plates and fixtures requiring a permanent Type H bushing installation.

Installation Notes

Press fit bushings are installed by toolmakers or machinists using an arbor press or hydraulic press — never drive them in with a hammer, as this can distort the bore or damage the jig plate. The receiving hole in the jig plate must be machined to the correct press fit tolerance before installation. Once seated, this bushing is not designed for removal and replacement. Ensure the jig plate is properly fixtured and supported during pressing to avoid bending or cracking.