Crossbow Ratchet Tube Bender. Enables plumbers and HVAC/R technicians to create precision bends of up to 90? on *soft copper and aluminum tubing. Bend 6 Sizes of Soft Copper and / or Aluminum Tubing 3/8" - 1 1/8". In the box: 6 interchangeable mandrels, 3 rotating side support bending bars, 1 ratchet bender, plastic case and instructions. Minimum distortion bends for optimal flow, Repeated alternate angled bends, Precise, powerful ratchet action, Crossbow parts are interchangeable with other ratchet tube benders. Fitted plastic carrying case with handle.