KDT9550 Features: -Needs as little as 5 degrees to move a fastener.-180 degree flex action head that allows access into the tightest applications.-Short pattern along with the slim head and body allow the stubby wrenches into places where no other wrench will work.-Sizes include: 10, 11, 12, 13, 14, 15, 16, 17, 18 and 19mm.-10 Pc. Metric Stubby Flex GearWrench Set. Warranty: -Sets & Kits do not have warranty/ see individual pcs for details.