I also have a Biaxial padlock at home I plan to gut and photograph for this section once I get back home from this trip... I'm sending one of them to .45 since he asked me nicely. I hope he will make a video when he gets it and posts it also in this section once he gets it picked...
The m3 is still tricky to pick it has 3 pins, the driver pin, a small middle pin in between the driver and key pins. Makes it a challenging pick, but nothing a skilled picker can't handle
The Padlock to the far right is the m3 I gutted the rest are Biaxial's