Upgrade your trimmer head with the MTD 49MSLOCK953 SpeedLock Fixed Head Insert. This high-quality replacement is compatible with Craftsman, Remington, Troy-Bilt, Bolens, and Yardman trimmers, and comes with a repl spool and string for added convenience. The MTD SpeedLock model ensures a smooth and easy installation process, and the fixed head design eliminates the need for bumping to advance the string. Perfect for tackling even the toughest weeds and grasses, this trimmer head insert is a must-have for any outdoor power equipment collection.

T 63.