... ,12,16,19mm 4.Material: Aluminum MODEL NO:CR- I10171Tube Bender* For plumbing of HVAC application & use in tight quarters* Bends ... ,12,16,19mm* For annealed copper and other typesof soft metal tubing.* high quality,reasonable price* new design,convenient carry* Bends ... : 6,8,10,12,16,19mm* Material: Aluminum newest designTube Bender