OTC Tools OTC 6613 Toyota Variable Pin Spanner Wrench. OTC Tools. Universal design fits many different types of pulleys having slots or holes, including camshaft pulleys and crankshaft pulleys. Wrench is adjustable from 1-1/4 inch to 5 inches; works with a 1/2 inch drive ratchet or breaker bar. Replacement Parts: 526908-1.......3.5 mm pin 526908-2.......4 mm pin 526908-3.......4.5 mm pin 526908-4.......5 mm pin 526908-5.......6 mm pin 526908-6.......7 mm pin 526908-7.......10 mm pin 526908-8.......Handle Email for product availability.