•12-PC Impact RPT Triple Square Driver Set includes: - ITSA4 1/4" Dr Impact RPT Triple Square Bit Socket M4 - ITSA5 1/4" Dr Impact RPT Triple Square Bit Socket M5 - ITSA6 1/4" Dr Impact RPT Triple Square Bit Socket M6 - ITSB7 3/8" Dr Impact RPT Triple Square Bit Socket M7 - ITSB8 3/8" Dr Impact RPT Triple Square Bit Socket M8 - ITSB9 3/8" Dr Impact RPT Triple Square Bit Socket M9 - ITSB10 3/8" Dr Impact RPT Triple Square Bit Socket M10 - ITSB12 3/8" Dr Impact RPT Triple Square Bit Socket M12 - ITSB13 3/8" Dr Impact RPT Triple Square Bit Socket M13 - ITSB14 3/8" Dr Impact RPT Triple Square Bit Socket M14 - ITSC16 1/2" Dr Impact RPT Triple Square Bit Socket M16 - ITSC18 1/2" Dr Impact RPT Triple Square Bit Socket M18