HUNTER 13PCS 6" FEELER GAUGE 0.05-1.00MM ( MADE IN GERMANY ) Brass blade feeler gauge sets are ideal for many applications which require blades which are anti-magnetic. Brass blades, SAE 80 CA 260 (Full Hard) Anti-Magnetic applications Blade length 150mm/6" Metric Set 13 Blade Sizes 0.05, 0.1, 0.15, 0.2, 0.25, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9 & 1.0mm