#$%^&*AU2019202153A120191128.pdf#####ABSTRACT A cutting head assembly, a trimmer head and a power tool including such cutting head assembly. The cutting head assembly comprises a spool and an enclosure combined to define a spool cavity arranged to accommodate a trimmer line wound on the spool, characterized in that the trimmer line is arranged to form a single layer of winding when being retracted within the enclosure. Figure 1A 11216642_1 (GHMatters) P110983.AU1/8 C-)3 0t C-)z r-i00 0