... /8",1/2",5/8"&3/4"O.D.tubingCM-608-A In inch:3/16",1/4",5/16",3/8 ... ",1/2",5/8"&3/4"O.DtubingCM-608-M In metric:6mm,8mm,10mm,12mm,14mm,16mm&18mm ... usual tubing.Precision machined yoke assembly incorporating a 3/8"sq. driver ratchet With a professional grade 3/8"sq. driver ratchet ... the same as series of CM-808-A.The left items don't include CM-125 ratchet driver. Flaring Tools CM-608-A