If the caliper retaining pins have a recessed hole on the end in order to remove the pins you will need either a metric allen type tool or a torx head type tool. The tool can be either or. These tools will usually fit right onto a 3/8 ratchet wrench. If you don't want to buy the whole set of wrenches and a parts house has no listing for the tool then you can make an impression of the tool hole with some clay or play dough and then take it to a parts house where they can match it. Make sure you get the right size tool and it fits tightly because the tool hole can easily strip out using the improper sized tool.

