1/4 Inch/ 3/8 Inch Drive; With 1/4 Inch Drive Size Of 5/32 To 15/32 Inch And 4 To 13 Millimeter Sockets/ 3/8 Inch Drive Size Of 1/2 To 3/4 Inch And 14 To 17 Millimeter Sockets/ 3/8 Inch Drive Ratchet/ 3/8 Inch Drive Extension/ Spin Disk/ 1/4 Inch Spinner Handle/ 5/8 Inch Drive Spark Plug/ 3/8 Inch Female To 1/4 Inch Male Reducing Adapter/ Blow Molded Storage Case; Set Of 40