Value Collection SC84949650 Tool Holder Bushing Type B

Product Description

The VALUE COLLECTION SC84949650 is a Type B rotary tool holder bushing designed for use in drill jigs, fixture plates, and precision machining setups. With a 5/16 inch (0.3125 inch) inside diameter and a 3/4 inch (0.7500 inch) outside diameter, it guides cutting tools accurately during drilling, reaming, and boring operations. The head thickness measures 0.19 inches, and the length under the head is 1-1/2 inches (1.5000 inches). This bushing is installed by machinists and toolmakers working in production or job-shop environments where repeatable hole location accuracy is required.

Type B tool holder bushings are commonly used in jig plate applications where a headed bushing must seat flush against or protrude slightly above a fixture surface. This style seats into a liner bushing or directly into the jig plate, depending on tooling design. The 5/16 inch bore accommodates standard drill, reamer, or guide pin diameters in that size range. Suitable for general metalworking, light production machining, and custom fixture builds where close-tolerance guidance of rotating tooling is needed.

Key Features

• Type B headed bushing with 0.19 inch head thickness for positive seating and axial location
• 5/16 inch inside diameter for accurate tool guidance during drilling or reaming
• 3/4 inch outside diameter for secure press or slip fit into liner bushings or jig plates
• 1-1/2 inch length under head provides sufficient tool guidance depth for typical jig applications
• Compact form factor suited for close-tolerance fixture and jig plate work

Compatibility

Designed as an OEM-style replacement or standard fitment component for drill jig and tool holder bushing applications requiring a Type B headed bushing with a 5/16 inch bore and 3/4 inch outside diameter.

Installation Notes

Tool holder bushings are installed by machinists or toolmakers during jig assembly or fixture maintenance. Ensure the receiving bore in the jig plate or liner bushing is clean and dimensionally correct before pressing or inserting the bushing. Press-fit installations should use appropriate tooling to avoid distorting the bushing bore. Always verify inside diameter clearance to the intended tool before placing the jig into service.