Boneham P486IO Press Fit Headless Drill Bushing Steel

Product Description

The BONEHAM P486IO is a press fit headless drill bushing used to guide cutting tools with precision during drilling, reaming, and boring operations. Manufactured from steel, this bushing features a 0.316 inch inside diameter, a 3/4 inch body outside diameter, and a 3/8 inch overall length. The inside diameter holds a tolerance of +0.0001 to +0.0005 inches, ensuring accurate tool guidance and repeatable hole location. It carries an industry code of P and is classified as a headless style, meaning it sits flush within the jig plate without a protruding flange. Machinists and tooling technicians install these bushings in drill jigs and fixtures used in production and precision machining environments.

This bushing is suited for use in drill jig applications where consistent hole placement is required across multiple workpieces. The press fit installation method means the bushing is driven directly into a prepared jig plate bore without the use of a locking mechanism or liner bushing. It is appropriate for permanent or fixed jig setups in light to medium production machining. The steel construction provides durability under repeated tool contact and wear in shop environments.

Key Features

• Press fit installation — no liner bushing or lock required for permanent jig setups
• Headless design sits flush with jig plate surface
• Inside diameter tolerance of +0.0001 to +0.0005 inches for precise tool guidance
• Steel construction for durability and wear resistance
• Industry code P for standard bushing identification and interchangeability
• Compact 3/8 inch overall length suitable for thin jig plates

Compatibility

Designed as an OEM-style replacement or direct fitment for standard P-series press fit headless drill jig applications requiring a 0.316 inch ID and 3/4 inch OD bushing.

Installation Notes

Installation is performed by machinists or tooling technicians using an arbor press or appropriate driving tool to seat the bushing flush into a precision-bored jig plate hole. The mating bore in the jig plate must be machined to the correct interference fit tolerance to ensure the bushing is held securely without movement during use. Do not hammer the bushing in directly without a driver to avoid damaging the bore or bushing. Once pressed in, this style is considered a permanent installation and is not designed for easy removal or replacement.