SODIAL(R) Nano Sim Cutter for iPhone 5 All in one Nano / Micro Sim Card Convertor with Full SIM adapters by Shenit This NANO SIM cutter is designed to cut your SIM card the same size as NANO SIM with perfect accuracy This patented Cutter is made of steel, and can handle thousands of cuts without any deformation. As a nano sim card is about 15% thinner you will need a couple of swipes with a sandpaper and you are ready to go.