7/8 X 4″ EXPANDING ARBOR (3902-4026)

7/8 X 4″ EXPANDING ARBOR (3902-4026) (SKU: 3902-4026)

7/8 X 4″ Expanding Arbor

• Chuck arbor in machine to be used
• Tighten expanding screw so that arbor expands .005″
• Machine arbor to length and size required
• Loosen expanding screw
• Position part on arbor and tighten expanding screw
• Includes alloy wrench

Specifications

• 7/8 X 4″ Expanding Arbor
• Chuck arbor in machine to be used.
• Tighten expanding screw so that arbor expands .005″.
• Machine arbor to length and size required.
• Loosen expanding screw.
• Position part on arbor and tighten expanding screw.
• Includes alloy wrench.
• Weight: 0.7
• Dimensions: L 3, W 1, H 6

Benefits

• Industrial-grade tooling designed for dependable shop performance.
• Supports consistent results when applied with correct setup practices.
• A practical choice for U.S. machine shops and maintenance work.

Recommended use

• Confirm compatibility (size, interface, machine capacity) before ordering.
• Follow safe operating practices and use appropriate PPE.
• Optimize setup rigidity and process parameters for best results.

USA Warehouse Stock — Fast U.S. fulfillment.