Designed to lock twin camshafts to timing. Universal lock gears, is applicable to all types of gears regardless of the diameter, spacing and pitch of teeth For petrol and diesel engines. The device protects against uncontrolled or accidental change of valve timing, which may move the free pulleys to each other. The device protects against uncontrolled or accidental change of valve timing, which may move the free pulleys to each other. Infinitely adjustable arm spacing using the blue knobs – 55-70 mm. Moldings and feet made of steel. The possibility of moving the spacing feet – 13 – 175 mm (blocking yellow knob).