20pcs chain breaker set for wera 9532 workshop18 piece set for the bicycle workshop. With the help of the Zyklop Mini bit ratchet, the manual bit holder and the 89 mm or 25 mm bits, it is possible to work on hexagon socket, TORX and Phillips cross slot screws. By means of the chain breaker, the chain holder and the interchangeable rivet bolt, which the set contains, it is possible to open and close bicycle chains (suitable for Single Speed chains of up to 12 speeds). The chain lock clamp makes it