The name C.S. Osborne has been synonymous with quality since its founding in 1826. Generations of leather craftspeople have turned to this trusted line of tools time and time again for professional results on every project. Now operated by the seventh generation of the Osborne family, this company adheres to proven, age-old quality standards that are evident in every tool. These standards have served leather crafters well throughout the company's history, as proven by the well-loved tool collections we've seen many customers amass through the years. 3.5".