We are working on several modifications to our signature punching tool at the moment. If you have to work with larger books (like in folio), here is a version you might consider. And the price isn't much higher compared to the smaller sizes!
hole punching tool
We've been asked to add this item to our stock for quite a long time. And finally, that moment came. From now on, we offer this signature punching cradle with a guide for an awl at our Etsy shop.