Grøntklima 1499949043 ST-R999 is a manual tube bender set in a carry case, covering copper refrigeration tubing from 1/4 inch through 7/8 inch outside diameter. The lever-action tools form controlled radius bends without collapse or ovality on soft copper. Typical applications include on-site pipework of refrigeration and heat-pump circuits where clean, kink-free bends are required near equipment connections.