... psi4) Bending formers supplied: 1/2", 3/4", 1", 1-1-4", 1-1/2", 2", 2-1/2", 2"5) Wall ... Bending formers supplied: 1/2", 3/4", 1", 1-1-4", 1-1/2", 2", 2-1/2", 2", 2-1/2", 3"5) ... 4Q:1) Capacity: 21 ton2) Stroke: 370 mm3) Air pressure: 120 psi4) Bending formers supplied: 1/2", 3/4", 1", 1-1-4", 1-1/2", 2", 2-1 ... /2", 2", 2-1/2", 3", 4" ...