Value Collection SC99188252 Tool Holder Bushing Type B

Product Description

The VALUE COLLECTION SC99188252 is a Type B rotary tool holder bushing used in drill jig and tooling fixture applications. With an inside diameter of 0.25 inches, an outside diameter of 0.75 inches, and a length under head of 1.5 inches, this bushing guides cutting tools such as drills, reamers, and counterbores with precision during machining operations. The head thickness measures 0.19 inches. Machinists, tool and die makers, and CNC setup technicians install this style of bushing to maintain accurate hole location and reduce tool deflection in production and prototype work.

Type B headless press-fit style bushings are a standard toolroom component used in drill jig assemblies across metalworking, fabrication, and general manufacturing environments. This bushing fits into a liner or jig plate bore and is suited for applications where a renewable or slip-fixed interface is needed. It is appropriate for light to moderate production runs where repeatable hole location is critical.

Key Features

• Type B configuration with a flanged head for positive axial seating in the jig plate
• Inside diameter of 0.25 inches (0.2500 inches) for 1/4 inch shank tooling
• Outside diameter of 0.75 inches (0.7500 inches) for standard liner bore fitment
• Length under head of 1.5 inches provides adequate tool guidance depth
• Head thickness of 0.19 inches for low-profile clearance above the jig surface
• Lightweight at 0.132 pounds, suitable for portable or bench-mounted jig fixtures

Compatibility

Designed as a standard Type B drill jig bushing for use in tooling fixtures and drill jig assemblies requiring a 0.75 inch OD bore and 0.25 inch ID tool guidance.

Installation Notes

Installation is typically performed by a machinist or toolroom technician. The bushing should be pressed into a properly reamed liner or jig plate bore using an arbor press to avoid damage to the head or bore surface. Ensure the jig plate and any mating liner are clean and free of burrs before installation. Verify spindle and workpiece are secured and all machine motion is stopped before servicing or replacing bushings in an active fixture.