... Type Flaring ToolsCM-708-A In inch:3/16",1/4",5/16",3/8",1/2",5/8"&3 ... /4" O.D. tubingCM-708-M In metric:6mm,8mm,10mm ... tubingCM-708-A-R410A For R410A bar:3/16",1/4",5/16",3/8",1/2",5/8"&3 ... /4" O.D. tubingCM-708-M-R410A For R410M bar: 6mm ... keep the flare face to be smooth, uniform without scratching.4. Eccentric cone will be rebound automatically after the work is ...