Includes impact driver, bit adapter, 2 phillips bits #2 and #3, 2 slotted bits 5/16'' and 3/8''. All bits have 5/16" hex drive. Molded carrying case included. 6 piece Size: 3/8'' Impact driver set Includes impact driver, bit adapter, 2 phillips bits #2 and #3, 2 slotted bits 5/16'' and 3/8'' All bits have 5/16" hex drive Molded carrying case included.