Any of the kits that come with the KLP2 or KLP6 only have up to 2” punches and dies. Can larger punches and dies be used?

No. Using the larger diameter punches and dies will overload the driver and cause driver failure. This is not covered under warranty. For any hole punching over 2″ we recomend our Slug-Out Knockout Mechanical Driver, the KOMD1. This unit can punch 1/2″ to 4″ holes.