Set includes 1/2 to 1 & 8 to 22mm Surface Drive Plus Provides stronger grip on fasteners Reduces fastener rounding Delivers up to 25% more torque Long Pattern Length Offset Box End Size stamped on both sides and head Packaged in blow mold tray FREE 24 pc. SAE/Metric Long Pattern Combination Non-Ratcheting Wrench Set (KDT-81900)