Stanley-Proto offers the Blackhawk by Proto line of tools featuring over 1,300 SKU's including tool sets, wrenches, sockets, specialty automotive, hammers, pliers, punches, chisels, pullers and tool storage units. All Blackhawk by Proto tools are backed with a limited lifetime warranty. These dependable tools are designed for everyday professional use in the automotive and light-industrial applications that require tools that work as hard as the people who use them. Blackhawk by Proto tools meet or exceed ANSI standards.