Flaring Tools is Special design for R410A system, also fit for usual tubing. Item Name 45°Eccentric Cone Type Flaring Tools Item No. / Size OF The Bar CM-806-AL In inch:1/4",5/16",3/8",1/2",5/8"&3/4"O.D.tubingCM-808-AL In inch:3/16",1/4",5/16",3/8",1/2",5/8"&3/4"O.D tubingCM-808-ML In metric:6mm,8mm,10mm,12mm,14mm,16mm&18mm O.D.tubing Special design for R410A system, also fit for usual tubing. ...