Detect the tool thanks to its fluorescence, activated by a lamp or UV neon light. Detectable in black or dark environment up to 5 meters. Takes the following bits: - Series 1: hexagon 1/4". - Series 2: hexagon 5/16". Used for installing 1/4" and 5/16" aircraft fasteners. Increment: 5°. Heads angled at 15°. Bits held by a spring clip. Knurled head for fast pre-tightening. Length 150 mm. Satin chrome finish. Weight: 74 g.