Boneham CB00001390 Slip-fixed Drill Bushing 0.081 in Id

Product Description

The BONEHAM CB00001390 is a slip-fixed drill bushing designed to guide cutting tools with precision during drilling, reaming, and boring operations. Built from steel with a headed configuration, it accepts a wire gauge number 46 drill (0.0810 inches inside diameter) and seats into a jig plate with a 5/16-inch body outside diameter. The 1/2-inch length under head provides adequate tool-guidance depth for standard fixture applications. The bore tolerance is held to a tight plus 0.0001 to plus 0.0004 inches, ensuring consistent hole location across repeated production runs. A licensed machinist or toolroom technician typically installs and services this bushing in a drill jig or fixture assembly.

This bushing is suited for use in production drilling fixtures where tool guidance accuracy is critical. The slip-fixed design allows the bushing to be installed and locked in place using a compatible lock screw, making it appropriate for single-operation drilling setups. It is commonly found in metalworking, aerospace, and general manufacturing environments where repeatable hole placement is required across multiple workpieces.

Key Features

• Slip-fixed (SF) industry code design for secure, locked-in-place installation
• 0.0810 inches inside diameter with a plus 0.0001 to plus 0.0004 inch tolerance for precise tool guidance
• Steel construction for durability in production drilling applications
• Headed bushing with 35/64-inch head outside diameter and 1/4-inch head height for positive seating against fixture plate
• Renewable bushing — can be replaced without scrapping the jig body
• LS-1 compatible lock screw for secure retention during operation

Compatibility

Designed for use with LS-1 compatible lock screws in standard slip-fixed drill jig fixtures. The SF bushing industry code indicates conformance to standard tooling bushing dimensions used across common drill jig systems.

Installation Notes

Installation is typically performed by a machinist or toolroom technician. The bushing is pressed or slipped into a hardened jig plate liner and secured with an LS-1 lock screw. Ensure the jig plate counterbore and liner are clean and free of chips before seating the bushing. De-energize any associated machinery and secure the workpiece fixture before performing bushing replacement or inspection.