Third generation Noosy Nano Sim Card & Micro Sim Card Cutter / Schneider in silver, for iPhone 5, iPhone 4 and iPad all in one cutter New model (electronic)
I have the cutter used twice to cut all of a Micro SIM to nano-SIM, both times successfully. Cutting on Micro I have not tested. In itself, so it worked out, but you must be extremely careful to insert the card into the slot properly, considering it