New from Zak Tool: Jumbo handcuff key. This handcuff key is 5 3/8″ long and weighs 4.7 ounces. That is much bigger than almost all other keys. The problem with a big key is that it gives you a lot of leverage. It is easy to break the tip. The tip is hardened stainless steel like all other Zak Tool keys, but the big handle provides enough leverage to bend it easily. So if you need a key like this, it will ork well…just be gentle with it. Available now at Handcuff Warehouse: Zak #16 Extra Large Handcuff Key.