For Husqvarna 125-450 FC/FX/TX/TC 2023-2025. For Husqvarna 150-501 TE/FE 2024-2025. - Suitable for a ¼" drive, ratchet, T-wrench or screwdriver handle, this tool makes removal a breeze.You no longer have to scrape your knuckles screwing the cover in and out.