YP-30 Hydraulic Flange Spreader 8 Ton Flange Separator Expander 35mm w/ casePREMIUM QUALITY Clamp body is made of alloy steel, very lightweight. The spreader head has been through a special heat treatment, having a good expansion ability. 9mm top wedge tip thickness, 30mm maximum separation distance (higher than standard actually). CONVENIENT OPERATION It is a manual integral hydraulic spreader, through pump to generate pressure, to push the expansion head to separate objects. As long as the socket width is greater than 9mm,