High-quality screwdriver for installing Noctua CPU coolers that use Torx® based SecuFirm2+ mounting systems Easier to operate and even more durable thanks to the reduced cam-out of the Torx® T20 drive 150mm long shaft makes it easy to reach the mounting screws of large heatsink models Magnetic tip reduces the risk of dropping screws, especially when space is tight and screws are hard to reach Large, convenient grip: comfortable to operate and helpful for applying pressure to spring-loaded mounting screws