KDT9520 Features: -Sizes: 10mm - 19mm.-Surface drive nearly eliminates fastener rounding.-Ratcheting box end needs as little as 5 degrees to move a fastener.-Stubby wrench beam allows access into tight areas that a standard combination will not.-10 Piece Metric Stubby Combination GearWrench Set. Warranty: -Sets & Kits do not have warranty/ see individual pcs for details.