Set of special long hex bits with magnet and ball end. Allows you to work in hard-to-reach places. The ball end allows you to turn at an angle. A strong magnet holds the bolt in place. It is possible to install the bolt from top to bottom in a narrow place. where the bolt cannot otherwise be installed. The unscrewed bolt remains on the magnet. which prevents the bolt from falling into a hard-to-reach place. Key length 123.5 mm. Screw adapter 3/8" with pin hole. Hex 3/4/5/6/8/10 mm.