1:5 transmission. Universal E type connection. Head is 43% smaller than its predecessor, which gives access and visibilty in difficult areas, such as posterior regions, or when treating children or elderly patients. Accepts standard and short-shank burs. Features exclusive triple-gear technology, a spray port, and a patented head/knee angle combination for superior access and performance. Exchangeable spray filter for effective spray cooling. Speed range up to 200,000 rpm.