Constructed from durable polymer material in a serrated shape with extra mass. For bigger jobs and more frequent use. Cuts 3X more area than residential lines. Edged line shape improves cutting performance. Durability for trimming around decks and wooden fences.
This string trimmer replacement spool 3-pack erases the tedious work of hand-winding spools. Designed for use with Black & Decker Auto Feed System (AFS) string trimmers. The 30 ft factory wound replacement spools feature a 0.065 in Dia line that utilizes centrifugal force to automatically feed the cutting string while eliminating bumps and hitches. Compatible with the following Black & Decker string trimmers GH400, GH500, GH600, ST6600, ST7000, STS7700, CST1000, CST2000, NST2018, NST1118, NST2218, GH900, LST136, LST200, LST220, LST300, LST400, LST420, MTC220, MTE912 and other listed trimmers.
Five edge cutting design. 18% faster cutting than round line. Reduces drag on engine. Cleaner cutting reduces ragged edges, grass less likely to turn brown. Silicone-coated line will not melt or bind in trimmer heads.