Introducing the Fox Knives Nauta Stonewashed 420 C Olive Wood Slip Joint Knife 01 FX 882. This knife features a 3.28-inch blade with a thickness of 0.15 inches. When fully open, it measures 7.31 inches in length. The handle has a thickness of 0.65 inches and the entire knife weighs just 2.8 ounces. The blade is made from 420 steel and the handle is crafted from olive wood.