The tool is detected by its fluorescence activated by a UV lamp or neon. Detectable in black or dark environment up to 3 meters. Rotating handle mechanism: Work twice as fast even in hard-to-reach areas. 60-tooth mechanism for 6° recovery for final tightening. Safety socket lock: no loss of sockets in your machines. Reversal by rotating cap. "Palm of the hand" system, allows the ratchet head to be pressed during (un)tightening without the risk of accidental reversal of the direction of rotation. Handle in bi-material elastomer: high resistance to abrasion and the most severe workshop solvents: SP95, SP98, diesel, acetone, brake fluid, Skydrol, Jet Oil, kerosene. D: 27 mm. D1: 21 mm. H: 29 mm. L: 120 mm. L1: 120 mm. Weight: 160 grams.