This precision-engineered tap and drill gauge is an essential reference tool for machinists and engineers. Crafted from durable stainless steel and measuring 16.5 cm in length, this comprehensive gauge provides quick access to decimal equivalents for twist drills and machine screw taps in both NF (National Fine) and NC (National Coarse) thread standards. The clear, permanently marked reference chart displays a wide range of sizes from #1 to #60, making it invaluable for workshop applications. The gauge features easy-to-read measurements in decimal format, thread sizes, and tap drill specifications, all organised in a logical, user-friendly layout. Its robust construction ensures longevity in workshop environments, while the compact design allows for convenient storage in toolboxes or on workshop walls. This professional-grade tool eliminates guesswork and helps maintain precision in machining operations.