Boneham PT2810HJ Press Fit Headless Drill Bushing

Product Description

The BONEHAM PT2810HJ is a press fit headless drill bushing designed to guide cutting tools with precision during drilling, reaming, and boring operations. This is a P-series industry-code bushing with a 0.257 inch inside diameter (Letter F), a 7/16 inch body outside diameter, and a 5/8 inch overall length. Manufactured from steel hardened to 60 to 65 HRC, it delivers the wear resistance required for repetitive production work. The headless profile sits flush with the jig plate surface, making it suitable for close-clearance applications where a headed bushing would interfere with adjacent fixtures. Machinists and toolmakers install this bushing by pressing it directly into a prepared jig plate bore.

This bushing is used in drill jig and fixture assemblies across manufacturing, metalworking, and fabrication environments. It is appropriate for both light-production and high-volume operations where consistent hole location is required. The press fit installation method means it is intended as a permanent or semi-permanent installation in the jig body, as opposed to a slip-renewable design. Typical applications include guiding twist drills, reamers, and step drills in ferrous and non-ferrous workpieces. It is well-suited for machine shops, toolrooms, and production floor jig maintenance.

Key Features

• Headless profile for flush-mount installation in tight jig plate layouts
• Press fit installation method provides positive retention without fasteners
• Steel construction hardened to 60 to 65 HRC for extended wear life
• Inside diameter tolerance of +0.0001 to +0.0005 inches ensures consistent tool guidance
• Meets ANSI standards for drill bushing dimensions and tolerances
• P-series industry code, Letter F (0.2570 inch) inside diameter for standard tool compatibility

Compatibility

Designed as an OEM-style press fit headless drill bushing conforming to ANSI P-series dimensional standards, suitable for installation in drill jig plates bored to accept a 7/16 inch outside diameter press fit bushing.

Installation Notes

Installation is performed by machinists or toolmakers using an arbor press or hydraulic press to seat the bushing into a properly sized jig plate bore. The receiving bore should be finished to the tolerance required for a press fit per ANSI standards before installation. Remove all chips and debris from the bore before pressing to avoid damaging the bushing or jig plate. This bushing is not intended to be removed and reinstalled once pressed into service.