Measuring the clearance between spaces just got a whole lot easier with the Steelman 97105 Feeler Gauge. This 20-piece measuring tool set was made strong yet flexible to squeeze into the tightest of spaces. It conveniently has both SAE and metric measurements etched on each blade for quick identification, as well as, a blade notch to remove any blade with ease. Once you’re done using the Steelman Pro Feeler Gauge, it can be stored away perfectly by simply folding up the blades.