SuperKnife The World's Original Folding Utility Knife. When the Super Knife's blade is dulled, it can be easily removed and replaced with a new, sharp blade. Super Knife will accept a wide-range of utility knife blades and the one-piece blade holder design insures the blade will not slip out under pressure. The Super Knife is lightweight and folds to a convenient 3.5 inch size. With its compact size it can easily fit in anyone’s pocket, purse or toolbox. It opens easily and becomes an easy to use ultimate utility knife. The Super Knife features an ergonomic belt clip and is made from high-quality aircraft quality material. Blade changing is a snap with the Blade Removal Service Tool. The tool conveniently slips onto any key ring for instant access and allows you to adjust the rate that your Super Knife opens and closes. The folding blade holder will accept all standard utility blades including contractor grade.