The STIHL FixCut™ cutting head is a one-piece magnesium alloy attachment that resists wear better than plastic heads. In abrasive soil conditions, such as sandy or volcanic soils, the FixCut@ cuts closer to the ground and has no moving parts to lose. This easy-loading, lightweight cutting head is ideal for users that prefer manual heads requiring precut lengths of nylon line. Designed with grooves in the sides to reduce trimmer line shearing when contacting solid objects, the FixCut™ is compatible with most straight-shaft trimmers. This magnesium alloy cutting head also works on the FS-KM trimmer attachment in conjunction with any of the current KombiMotor models.