The Slice10408 box cutter blades feature a pointed tip for applications that require a piercing action to initiate the cut. Their finger-friendlyedge cuts effectively but is safe to the touch. As with all Slice safety blades, our box cutter blades are non-sparking, non-magnetic, and chemically inert. They dont require any special oil coating and will never rust. Use them with all Slice box cutters, pen cutters, and mini cutters.