being coldworked, the mandrels are special high strength materials. Available sizes range from 1/8" to 45/64" (3.1 17.9 mm) in 1/64" increments. Applied expansion ranges from 3.6...Cold Working Home Products Tooling Downloads About Us Products Split Sleeve Process Split Sleeve Capital Split Sleeve Expendable Split Mandrel Process Sleeveless Capital... metallic components by retarding crack growth around the hole. The most common method of coldworking involves pulling an oversized, tapered mandrel through a hole. This force...