Pedros 8mm Hex Driver II Extra Long Hex Pedal/Crank Wrench with Ergonomic Screwdriver Handle. Pedros Hex Driver features an ergonomic dual-density screw driver handle for comfort and control an extra long hex key for exceptional leverage a second ball end for quick and easy installation or removal and heat-treated S2 tool steel construction for the ultimate in strength and lasting performance. Backed by Pedros lifetime warranty.