Wera 9532 Chain Riveter SetWera 9532 Chain Riveter Set. This 18 piece bike workshop tool set includes a Zyklop Mini bit ratchet a bitholding screwdriver and 89 mm and 25 mm bits for hex TORX and Phillips screws. It features a chain riveter and fastener with an exchangeable rivet pin for opening and closing single speed to 12 speed chains and a chain lock tool for easy handling of chain locks. Includes Wera Zyklop Mini 1 bit ratchet 816 R bitholding screwdriver one chain riveter