Value Collection 262-3060 Expanding Lathe Mandrel

Product Description

The VALUE COLLECTION 262-3060 is an expanding lathe mandrel designed to grip workpieces with bore diameters ranging from 1 inch to 1-1/4 inches. The mandrel expands radially to secure the part from the inside, allowing the outside diameter to be turned, ground, or finished without interference from external clamping. It features a 1-inch shank diameter for mounting in a lathe spindle or chuck, a 4-inch sleeve length that contacts the workpiece bore, and an overall arbor length of 9 inches. Machinists and toolroom technicians working with bored parts, rings, bushings, and similar components use this type of mandrel to maintain concentricity during secondary machining operations.

This expanding mandrel is suited for lathe work in job shops, tool rooms, and production environments where inside-diameter clamping is required. It is appropriate for use on ferrous and non-ferrous workpieces where the bore is prepped to a finish diameter within the 1 to 1-1/4 inch grip range. The 9-inch arbor length provides clearance for turning longer workpieces while the 4-inch sleeve keeps the grip zone well-supported. It ships as a single unit and is ready for immediate use without additional components.

Key Features

• Grip range of 1 inch to 1-1/4 inches accommodates a range of bore diameters in a single tool
• Expanding sleeve design centers and holds workpieces from the inside bore for OD turning and finishing
• 1-inch shank diameter mounts in standard lathe chucks or spindles
• 4-inch sleeve length provides broad contact area for stable workpiece support
• 9-inch overall arbor length allows clearance for turning longer ring and bushing-type parts
• Single-unit packaging with a minimum order quantity of 1

Compatibility

Designed as a standard expanding lathe mandrel for use on lathes accepting a 1-inch shank, suitable for workpieces with a finished bore in the 1 to 1-1/4 inch range.

Installation Notes

Installation is performed by machinists on a lathe with the spindle fully stopped and the machine locked out before mounting or removing the mandrel. The shank should be seated securely in the chuck or collet and checked for runout before cutting begins. Inspect the expanding sleeve and the workpiece bore for burrs or debris prior to seating the part, as surface irregularities can affect concentricity. Follow the lathe manufacturer guidelines and applicable shop safety procedures when operating at speed.