SK Hand Tool Corporation

Motor Vehicle ManufacturingPennsylvania, United States11-50 Employees

SK Professional Tools was founded in the early 1900s as the Sherman-Klove Company by Mason H. Sherman and Roger Klove. The company specialized in screw-machine products and spent the early years operating as a contract company that manufactured quality tools and parts for other companies. They quickly earned a reputation for quality and innovation that’s endured for over 100 years.

At the onset of the First World War, Sherman-Klove pivoted to apply its manufacturing expertise to producing munitions and mortar shell casings for the American war effort. The company did so until the war’s conclusion in 1919 when they were able to return to what they really loved and what still drives us today – manufacturing quality tools for the American tradesman.

In 1934, SK engineer Theodore Rueb was granted a federal patent for SK’s signature tool, a tool that would change the hand tool landscape forever – the SK Round-Headed Ratchet. The new SK ratcheting mechanism represented a radical advancement for its time with fine-toothed action that was simple, reliable and easy to mass-produce. We have continued to refine the design ever since, expanding our offerings to include a variety of drive sizes, but the essence of our Round-Headed Ratchet has remained the same for more than 70 years.

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