【Durable for Use】Anti-rust 65 Manganese Steel, the stainless steel feeler gauge Constructed from hardened tempered steel with a lube oil coating to prevent pitting and corrosion.
【Wide Application】The feeler gauge is used to measure the gap size, Suitable for designers, engineers, mechanics to measure the thickness of Valves,tappet clearances, spark plugs gaps, bearing clearances, piston ring gaps and other hard to reach places.
【 360-degree Swivel Design 】The Feeler Gauges allows you to unfold or fold them easily and carry them with you. You could disassembled into a separate feeler gauge to use by adjusting the screw.Metal fastening screws,and durable.