Value Collection SC84949478 Type J Tool Holder Bushing

Product Description

The VALUE COLLECTION SC84949478 is a Type J rotary tool holder bushing designed for use in drill press and milling machine setups where precise tool positioning and support are required. With a 1.25-inch inside diameter and a 2.5-inch outside diameter, this bushing provides a stable interface between the tool holder and the machine table or jig plate. The head thickness measures 0.3504 inches and the length under head is 4 inches, making it suitable for applications requiring extended reach. Machinists and toolroom technicians install this component as part of drill jig assemblies or tooling fixture setups.

This Type J bushing is suited for production machining and toolroom environments where repeatable hole location accuracy is critical. The 1-3/4-inch distance between hole centers and 7/8-inch D dimension support standard jig plate configurations. It is appropriate for both light industrial and precision manufacturing operations. Typical installations involve drill jigs used in metal fabrication, assembly fixtures, and repetitive-hole drilling operations on ferrous and non-ferrous workpieces.

Key Features

• Type J bushing configuration for standard rotary tool holder applications
• 1.25-inch inside diameter accommodates common tool shank sizes
• 2.5-inch outside diameter for secure seating in jig plate bores
• 4-inch length under head provides extended support depth
• 0.3504-inch head thickness for flush or low-profile mounting
• 1-3/4-inch distance between hole centers for standard jig plate layouts

Compatibility

Designed as an OEM-style replacement or direct-fit component for standard Type J rotary tool holder bushing applications in drill jig and fixture assemblies.

Installation Notes

Installation is typically performed by machinists or toolroom technicians during jig and fixture assembly or maintenance. Power down all associated machinery and secure the workpiece fixture before removing or installing the bushing. Use appropriate press-fit or slip-fit installation methods consistent with the bushing type and bore tolerance. Verify dimensional fit against the jig plate bore specification before final assembly.