Contact File – High Current Applications$ 5.21 Add to cart Categories: Door Locks, , Fabric&Fleece Backdrop, Sound Healing Description 5-1/4″ Metal Contact File. A stiff file for cleaning high current and tungsten contacts. Related products CV Joint Grease Satchet DBC600 STRETCHY Direct Fit CV Boot Kit DBC500 STRETCHY Direct Fit CV Boot Kit DBC400 STRETCHY Direct Fit CV Boot Kit