12-Piece Ratcheting Combination Wrench Set includes 12 piece ratcheting combo wrenches, Metric sizes from 8mm, 9mm, 10mm, ...19mm. These wrenches feature flexible head in the ratcheting side, offering the longest ratchet life and improved access with 72 ratcheting positions. A flexible position 72 tooth ratchet end helps speed up your work. The other side is open end wrench for easy access to fasteners in recessed places. Each combination wrench features an ergonomic I-Beam handle design for improved comfort. Each wrench gives you the right grip by combining the quick grabbing action of an open-ended wrench and the continuous contact of a ratchet. High quality polished chrome vanadium steel for long lasting durability. The wrench set also comes with a storage tool roll bag for good organization.