Since our beginning, SATA automotive specialty tools have been driven by innovation. We’ve built our reputation with tools that make tough jobs easy. SATA automotive specialty tools are proudly made with the finest components under the most stringent manufacturing guidelines. Made for everyday use – guaranteed for life. Better tools mean easier, more efficient work so we constantly evaluate automotive engineering trends allowing us to consistently improve and enhance our tools to better fit professional hands. Shift up, choose SATA Tools for your garage! Features: Tapered ends for access Easy to read size markings on each blade 4" (100mm) blade length Tapered ends for access Easy to read size markings on each blade 4" (100mm) blade length Blade is made of Manganese alloy steel .