Disc Binding Hand Punch, Compatible with All disc Systems Including Levenger Circa, Staples ARC, TUL, Happy Planner, Discbound, etc. Able to Punch Cover Material.

While still pretty close, it still is not QUITE as deep as the official happy planner hole punch. It's easy to use and the ruler for spacing for hp mini & other discbound systems is really helpful, my only complaint is that is that because you can't change the depth, it makes turning pages still a bit tight.