Kaneshin No. 511 wire cutter is the standard wire cutter. It has a rounded cutting head to reduce the chance of cutting into the branch when removing the wire. This wire cutter will cut all sizes of wire, but on the thick wire, it is best to take bites out of the wire.
For basic usage and tips on how to care for your bonsai tools please visit this link. Bonsai Tools & How to Care for Them