The WRA series is a stainless steel precision shaft manufactured by PreCom. It functions with length tolerance of +500 / -100 mm. It also functions with surface hardness of 55-59 HRC. The device has usable diameters of 5, 6, 8, 10, 12, 14, 15, 16, 20, 25, 30, 40, 50, and 60 mm.