The Proto B944764 Long Feeler Gauge Set delivers precise gap measurement with 25 blades ranging from .0015" to .040", making it ideal for engine clearances, valve adjustments, and tight-tolerance industrial or MRO applications. The generous 12" blade length provides reach into deep assemblies where standard gauges fall short.
Each blade measures 1/2" wide, offering a stable, easy-to-handle surface for accurate readings. With 25 incremental blades in a single set, technicians and mechanics can quickly find the exact thickness needed without swapping tools.