Check out this precision Imperial worm gear bender for 1/4" to 3/4" O.D. aircraft grade stainless steel tubing (and all other metal tubing). 50-to-1 gear ratio & crank with revolving hand grip keeps effort at a minimum. Follow bar eliminates drawing action & keeps tube in virtually perfect round. Adjustable pressure roller. Enclosed gears. Clamp it in a vise, or bolt to bench or tripod.
