Lang Tools 32 Blade Feeler Gauge with Brass Blades 36A. Manufacturer Part Number: 36A. long x 1/2in. blades with thicknesses.0015. 002. 0025. 003. 004. 005. 006. 007. 008. 009. 010. 011. 012, 013. 014. 015. 016. 017. 018. 019. 020. 021. 022. 023. 024. 025. 026. 028. 030. 032. 035 and. 010 brass blade for transistorized engines Made in the U.S.A.