Crossbow Ratchet Tube Bender Body Assembly for RTB118.Uniweld's "Crossbow" Ratchet Tube Bender allow the plumber and HVAC/R technician to create precision bends up to 90aº of soft copper and aluminum tubing. The low friction mandrels and rotating side support blocks furnish precision bending in restricted spaces. Bend Tubing: 3/8", 1/2", 5/8", 3/4", 7/8", 1-1/8" O.D. Minimum distortion bends for optimal flow. Repeated alternate angled bends. Rugged plastic carrying case. Kit Includes: 6 interchangeable mandrels, 3 rotating side support block bars, 1 ratchet bender, plastic case and instructions.