The Grace USA N4 is a precision screwdriver engineered with exacting specifications for professional and hobbyist applications. Measuring .375 inches wide .049 inches thick and 9.50 inches long this tool delivers the precise control needed for delicate work.Grace USA Model N4 Precision ScrewdriverBlade width: .375 inches for optimal fitBlade thickness: .049 inches for precision workOverall length: 9.50 inches for comfortable reachProfessional-grade construction and materialsIdeal for gunsmithing watchmaking electronics repair and other precision applications where exact blade dimensions are critical for proper fit and function.