The Knife With 15 Essential Tools Smartknife+ features a black oxidised high grade stainless steel 6cm partially serrated (2cm) locking blade. It holds a medium Phillips driver bit in the dedicated magnetic holder. This bit fits into the bit driver at the head of the tool. Smartknife+ Sports 5 wrenches and 3 wire strippers, a pry bar function – ideal for removing unwanted nails, ruler, and a pocket clip and bottle opener – you couldn’t ask for much more in a smart knife.