The newly-diagnosed disease causes fingers to turn white and numb as a result of using hand-held vibrating tools such as pneumatic drills and jigger picks.Machines called jiggers and jolleys are used to make tableware in ceramics factories.With a working width of 4.5 meters, the HT jigger is the largest such dyeing unit installed in Italy. 2A person who dances a jig. 3A small fore-and-aft sail set