Boneham PT2812HS Press Fit Headless Drill Bushing

Product Description

The BONEHAM PT2812HS is a press fit headless drill bushing used to guide drill bits and cutting tools with precision during machining and fabrication operations. This bushing carries an industry code of P and features an inside diameter (ID) of 0.272 inches with a tight tolerance of +0.0001 to +0.0005 inches, ensuring consistent hole location and accurate tool guidance. The body outside diameter is 7/16 inches and the overall length is 3/4 inches. Constructed from steel, the PT2812HS delivers the hardness and wear resistance required for repeated drilling cycles. It is a non-renewable, headless design installed via press fit into a drill jig or fixture plate.

This bushing is suited for use in drill jigs, fixture plates, and tooling setups found in manufacturing, metalworking, and precision machining environments. The headless profile allows flush installation where protruding flanges would interfere with workpiece positioning or clamping. Machinists, tool-and-die makers, and fixture builders specify this type of bushing when a permanent, low-profile guide is needed for high-repetition drilling operations on production or prototype work.

Key Features

• Press fit installation for permanent, secure seating in jig or fixture plate
• Headless design provides flush, low-profile fit where flange clearance is limited
• Inside diameter tolerance of +0.0001 to +0.0005 inches ensures precise tool guidance
• Steel construction resists wear during repeated drilling cycles
• Industry code P for straightforward cross-reference and replacement sourcing
• Non-renewable design intended for permanent fixture applications

Compatibility

Designed as an OEM-style replacement or direct-fit option for press fit headless drill bushings meeting industry code P specifications with a 0.272 inch ID and 7/16 inch OD.

Installation Notes

Installation is typically performed by toolmakers or machinists using an arbor press or hydraulic press to seat the bushing flush into the prepared bore of a drill jig or fixture plate. The receiving bore must be machined to the appropriate press fit tolerance to achieve correct interference. Do not hammer the bushing in with impact tools, as this can damage the bushing bore or distort the fixture. Verify ID clearance with the intended drill or tool shank before final installation.