Product Description 15pc PULLEY TENSIONER TOOL SET PT51401 Allows easy servicing of pulleys with difficult access Excellent for tensioning, timing or other belt pulley bolts & nuts Curved design clears obstacles easily for fast repairs Five E-STAR adapters: E10, E12, E14, E16 & E18 Eight 12pt adapters: 12, 13, 14, 15, 16, 17, 18 & 19mm Release tool