True® SmartKnife® WR 8-In-1 Multi-Tool. The SmartKnife® WR features a 2.5" black oxidized sheepsfoot blade cleverly wrapped in an assortment of multi-tools. This 8-in-1 multi-tool knife is equipped with an adjustable wrench, calipers, magnetic 1/4" bit driver, wire strippers, rulers, flat driver, and a pry bar, making this the smartest knife you can put in your pocket.