Mini Battery Switch Key with Removable Knob - 32V & 300AThese Mini Battery Switches feature a removable knob for extra security. To remove, simply twist the cap to the OUT position and pull. Mini footprint makes it ideal for close quarters. The 422730-1 is rated at 300A continuous and 1000A cranking amps. Installation is as easy as drilling a 2-1/16" hole for the 422730-1, inserting the socket body, tightening the locking nut, and connecting the wires. Features: 3 Switch positions: On, off, and outConstructed of machined brass and injection molded nylonSpecifications:Switch Face Width: (inch) 2-1/16"Volts: 32Amps: 300Stud Diameter: (inch) 5/16"