3 PIECE 2 TO 2-3/4" X 14" ARBOR EXPANDING MANDREL SET (3902-3076)

3 Piece 2 to 2-3/4" with 14" Arbor & 6" Sleeve Expanding Mandrel Set Arbors are tapered and sleeves are flexible. Made of 64Mn high grade tool steel. Precision ground and heat treated for maximum concentricity and holding power. Center holes are ground and lapped. Size is obtained by moving the sleeve along the arbor. The automatic expansion feature can be utilized on any bore (standard or non-standard) within the range of the mandrel. Set has 2 expanding sleeves and one mandrel. Arbor hardness is HRC55-60 and sleeve is HRC44-48. Shipping Weight: 14 lbs