1/2-9/16″ X 5″ X 2-1/2″ SLEEVE EXPANDING MANDREL 2 PIECE KIT (3902-3050)

1/2-9/16″ X 5″ X 2-1/2″ SLEEVE EXPANDING MANDREL 2 PIECE KIT (3902-3050) (SKU: 3902-3050)

1/2-9/16″ Expanding Mandrel Set with 5″ Length of Arbor and 2-1/2″ Length of Sleeve

• 2 pieces per set
• Made of 64Mn high grade tool steel
• Precision ground and heat treated for maximum concentricity and holding power
• Arbor hardness is HRC55-60 and sleeve is HRC44-48
• Center holes are ground and lapped
• The automatic expansion feature can be utilized on any bore (standard or non-standard) within the range of the mandrel
• Arbors are tapered and sleeves are flexible
• Size is obtained by moving the sleeve along the arbor

Specifications

• Made of high grade tool steel
• 1/2-9/16″ 5″ Length of Arbor 2-1/2″ Length of Sleeve Expanding Mandrel
• 2 pieces per set.
• Made of 64 Mn high grade tool steel.
• Precision ground and heat treated for maximum concentricity and holding power.
• Center holes are ground and lapped.
• The automatic expansion feature can be utilized on any bore (standard or non-standard) within the range of the mandrel.
• Arbors are tapered and sleeves are flexible.
• Size is obtained by moving the sleeve along the arbor.
• Arbor hardness is HRC55-60 and sleeve is HRC44-48.
• Weight: 0.3
• 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.