The M18 FUEL QUIK-LOK String Trimmer Attachment is powered by the M18 FUEL Power Head w/ QUIK-LOK and is compatible with The M18 FUELQUIK-LOK Attachment System. The String Trimmer Attachment features an adjustable cutting swath – 14” for maximizing run-time and 16” for maximizing clearing power and capacity. The String Trimmer Attachment utilizes the Easy Load Trimmer Head which provides you with an easy line loading experience and the ability to load up to 25' of trimmer line in under 30 seconds. The QUIK-LOK Attachments feature protected drive shafts for increased durability against drops and storage elements. The String Trimmer Attachment also utilizes optimized gearing to manage the cordless M18 FUEL Power Head RPM output specifically for string trimming applications.