The Shark Diamond Blade is the HOTTEST selling blade in the country. With it's unique and patented split segment design and over sized cooling holes there is no other blade in todays market that will come close to the shark. A Over sized 13.5 mm split turbo segment with the best of both speed and life! 39 Segments-Twice the industry average. 3 drop Segments to prevent undercutting when cutting asphalt or green concrete