Boneham PT4010JQ Press Fit Headless Drill Bushing

Product Description

The BONEHAM PT4010JQ is a headless press fit drill bushing designed to guide drill bits and reamers with precision in jig and fixture applications. Manufactured from steel with a hardness of 60 to 65 HRC, it resists wear under repeated drilling cycles. The bushing features an inside diameter of 0.375 inches (3/8 inches) with a tight tolerance of +0.0001 to +0.0005 inches, an outside diameter of 0.625 inches (5/8 inches), and an overall length of 0.625 inches (5/8 inches). The headless design sits flush with the jig plate surface, making it suitable for close-clearance and stacked-plate setups. Machinists and toolmakers press this bushing directly into a prepared bore without fasteners.

This bushing is used in production drilling jigs, fixture plates, and tooling assemblies where repeatable hole location is required. The P industry code designation identifies it as a standard press fit type per ANSI specifications, making it a common choice for both prototype tooling and high-volume production fixtures across metalworking and machining environments. It is installed permanently and is not designed for removal and replacement during the fixture service life.

Key Features

• Headless press fit design installs flush with jig plate surface
• Inside diameter tolerance of +0.0001 to +0.0005 inches for tight positional accuracy
• Steel construction hardened to 60 to 65 HRC for wear resistance
• ANSI-standard P industry code for consistent interchangeability
• Non-renewable permanent installation - no counterbore or head required
• Compact 0.625 inch overall length suits thin-plate fixture applications

Compatibility

Designed as an ANSI-standard press fit headless drill bushing for use in jig plates and fixture assemblies requiring a 0.625 inch diameter press fit bore and a 0.375 inch tool guide diameter.

Installation Notes

Installation is performed by machinists or toolmakers using an arbor press or hydraulic press. The receiving bore in the jig plate must be machined to the appropriate interference fit tolerance to achieve proper retention. Do not drive the bushing with a hammer directly on the bore face, as this can distort the inside diameter. Verify bore depth and surface finish before pressing to ensure full seating and accurate drill guidance.