Take on the toughest jobs with Husqvarna's T35X Tap Advance Trimmer Head. Designed for professionals, this trimmer head features a reinforced ball bearing tap advance button and line capacity of 23 feet when using .095" trimmer line. With an easy reload spool that comes off with the cap, the operator no longer needs to turn the trimmer upside down. The T35X holds .065", .080", .095", or .105" trimmer line and comes pre-wound with .095" Titanium Force Line. • M10- Fits Husqvarna straight shaft string trimmers and brushcutters with 10mm arbor, excluding battery powered products • M12 Thread - Fits Husqvarna straight shaft string trimmer and brushcutters with 12mm arbor.