The Makita 191Y39-5 is a Tap&Go nylon head for Makita brushcutters. It is supplied as a ready-to-install head set with preloaded nylon line, designed for quick replacement and easy line advancement through the Tap&Go system. It uses nylon line with a diameter of 1.65 mm and a total line length of 8 m; some sources mention 1.6 mm due to rounding. It is mainly intended for the Makita DUR193 model and is also reported to be compatible with the DUR181. The package contains 1 head set with line. The line is described by some sources as a four-blade cutting line. The compression spring is sold separately. This genuine Makita accessory is suitable for restoring normal cutting performance with proper application and reliable operation.