Sizes include 8mm through 19mm in professional wrench rack. Flex GearWrench combines the efficiency of a ratchet with the access of a wrench. Plus, you can vary the offset angle of the wrench to almost any degree. Limited lifetime warranty. Point Size qty. 12, Ratchet Head Yes, Storage Type Storage rack, Combination Type Open/boxed, Measurement Type Metric, Flex Head Yes, Metric Sizes mm 8,9,10,11,12,13,14,15,16,17,18, 19, Pieces qty. 12.