This crossbow-style ratcheting tubing bender from Uniweld will bend soft copper and aluminum tubing up to 90º. The ratcheting mechanism replaces the long lever arms of other benders, allowing you to make bends in tight spaces.
Designed to distort the tubing as little as possible to maintain optimal flow, the ratcheting handle drives the mandrel and the tubing against the side support blocks. As the mandrel continues forward, the side blocks rotate to keep their concave surface supporting the tubing.
Uniweld’s website describes the Crossbow tube bender coming in a plastic carrying case with mandrels for 3/8”, 1/2”, 5/8”, 3/4”, 7/8”, and 1-1/8” OD tubing, and three side support block bars. I can’t find the exact same kit listed by the manufacturer, but Enviro-Safe sells what looks to be that same bender with a slightly different list of accessories for $130.