The bit has a 1/4" hex drive (Wera connection series 1) and can thus also be used in, for example, bit ratchets and bit holders with Rapidaptor The 9504 tyre lever has a 1/4" holder for a 1/4" bit If both 9504 tyre levers are slid over each other, a 4-in-1 bit can be used to use them as screw tools The 9505 tyre lever also serves as a valve ejector and bleeder The tyre levers and 4-in-1 bits can be tucked together for compact storage When screwing, continuously push against the spring force so that the smaller profile sinks to accommodate the larger profile The 4-in-1 bits 9506 are suitable for four sizes of male hex screws (3 - 4 - 5 - 6) The 4-in-1 bits 9507 for three sizes of male hex screws (2.5 - 5 - 6) and one size of TORX® screws (TX 25)