The Sealey 26 Blade Feeler Gauge is a precision measuring tool designed for checking clearances and tolerances in automotive and engineering applications. This imperial graduated feeler gauge features dual marking in both imperial and metric measurements, providing versatility for tradespeople working across different measurement systems. The offset blade design sets this gauge apart, with a 45-degree angle and 15mm offset tip configuration that makes it essential for accessing overhead camshaft (OHC) configurations and other hard-to-reach areas where conventional straight blade gauges cannot reach. Each blade measures 75 x 13mm, offering sufficient length and width for accurate readings in confined spaces. The comprehensive 26-blade set covers a range from 0.005" to 0.030" (0.127mm to 0.762mm), providing precise incremental measurements for professional tolerance checking. Ideal for automotive technicians servicing modern engines, this feeler gauge is equally suitable for mechanical e