The HDLS limit switches are built to last and are designed for easy application installation. Its unique all-metal drive train provides consistent operating characteristics and lasts longer than drive trains with plastic parts. The HDLS offers sintered bronze bearings on 303 stainless steel operating shafts for a long, reliable mechanical life. Whether single or double pole, plug in or non-plug in, they all offer the same actuator lever tracking dimensions for the ultimate in design flexibility. All this is packaged in a rugged corrosion-resistant zinc head and body that is phosphate treated and epoxy finished.