Ideal for smaller residential drains, like sink lines, our ¼” cable is available in hollow and inner core styles. Our 1/4” drain cable can be used in a variety of Duracable machines models (DM150, DM138, and DM125). Hollow core is most popular cable style, however, inner core cable gives the cable a stiffer feel for longer runs. Hollow core cable is manufactured from a proprietary hard-drawn, high-tensile strength wire in a variety of lengths in our 1/4" diameter cable. The inner core cable contains a nylon string core that floats inside the cable which allows the cable to increase in stiffness as the cable builds torque. Cable life is also improved because of the increased stiffness of the cable.