Use these blades for the same applications as you would use a regular utility blade, and more. The properties of advanced ceramics ensure that your blade is non-sparking, chemically inert, autoclave-friendly, and never rusts.Slice’s thicker, more durable ceramic blades do not flex in the same way as metal, so they’re not ideal for any application that exerts a side load or requires the blade to bend. But typical uses, such as hand trimming solder from metal parts or plastic flash from injection-molded products are just as easy—and much safer—with Slice utility blades.