Unique aircraft fasteners require specialized tooling for proper installation. Hi-Lok® installation tooling from MRO Tools include Box Ratchets, Hand Ratchets, Grip Scales, Hex Keys, Protrusion Gauges, Roller Ratchets and Installation Sockets.MRO Tools has a large selection of tools used for broached pin installation. This includes Hi-Lok®, Hi-Lite®, Hi-Tigue®, and torque controlled fasteners. We feature the Omega Technologies brand, which also produces gauges to determine the correct fastener length for a hole and to check the pin protrusion of the completed installation.