Boneham PT1210CB Press Fit Headless Drill Bushing

Product Description

The BONEHAM PT1210CB is a press fit headless drill bushing used to guide drill bits and other cutting tools with precision during machining and fabrication operations. This bushing carries industry code P and features a 0.073 inch (No. 49 wire gauge) inside diameter with an inside diameter tolerance of +0.0001 to +0.0004 inches, making it suitable for close-tolerance work. The body outside diameter is 3/16 inches and the overall bushing length is 5/8 inches. Constructed from steel hardened to 60 to 65 HRC, it provides the wear resistance required for repeat-use jig and fixture applications. Installation is by press fit into a jig plate or fixture body.

This bushing is designed for use in drill jig plates and tool fixtures in production machining, tool and die, and precision fabrication environments. The headless design allows it to sit flush within the fixture plate, which is preferred when clearance above the work surface is limited or when the bushing must not protrude above the jig body. Machinists, toolmakers, and precision fabricators typically specify this style for high-volume drilling operations where consistent hole location is critical.

Key Features

• Press fit installation for secure, permanent seating in jig plates and fixtures
• Headless design sits flush with the fixture surface for clearance-sensitive setups
• Inside diameter 0.073 inches (No. 49 wire gauge) with tight tolerance of +0.0001 to +0.0004 inches
• Steel construction hardened to 60 to 65 HRC for extended wear life
• Meets ANSI standards for drill bushing dimensions and tolerances
• Non-renewable design provides a cost-effective permanent guide bushing solution

Compatibility

Designed as an ANSI-standard press fit headless drill bushing for use in jig plates and tool fixtures requiring a No. 49 bore with a 3/16 inch OD and 5/8 inch overall length.

Installation Notes

Press fit bushings are installed by toolmakers or machinists using an arbor press to drive the bushing into a precisely reamed hole in the jig plate. Power down any associated equipment and secure the workpiece fixture before installation. The receiving hole in the jig plate must be reamed to the appropriate interference fit diameter per ANSI standards to achieve proper retention. Do not hammer the bushing in directly without a driver to avoid damage to the bore or the bushing face.