Hardened steel box fingersLeft & right beam control leversBrakes from 0° – 135°Finger segments size: 2″ x 5pcs，3″ x 6pcs，4″ x 5pcs Fully trussed for strength & precision Item No.: 173123Model: W1.5x1220z / W-4816ZCapacity(in.): Length: 48” Thickness: 16Ga Angle：0-135° Max. box depth: 2 “MAXIMUM LIFT OF BEAM: 1-1/2″MINIMUM REVERSE BEND: 1/2″MINIMUM FLANGE (MILD STEEL): 5/16”Packing size(in.)：64x19x27N.W./G.W.(lbs)： 423/462