This GearWrench Stubby Ratchet Wrench 10 Piece Metric Set features stubby length for tight access areas and is designed with a ratcheting box end which needs as little as 5 degrees to move fasteners VS the standard box end wrenches with 30 degrees. With Unique Technology on Box End it provides off-corner loading for better grip and reduced fastener rounding. Sizes included are 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm and 19mm.