Work Sharp knife and tool sharpeners is one of the 3 sub-brands of Darex. Darex began in 1973 in Beecher Illinois, by three generations of the Bennard family. Darex has grown to produce the world’s best-selling industrial drill sharpeners as well as a full range of commercial and consumer sharpening products. The Work Sharp brand – for precision tool sharpening – was launched in 2007.