Powermatic 12" Jointer 3HP 230V w Helical Cutterhead 42 Carbide Inserts 12x84 Cast Iron Table Oscillating Saw Blades preventing clogging and heat buildup preventing clogging and heat buildup that can cause burning or surface defects in dense engineered wood products Purpose built for flush concrete applications the internally threaded drop in design is specifically engineered for solid base materials where a flush surface mount is required Table "lips" on both sides of cutterhead aid in noise reduction Helical cutterhead with 42 two sided carbide inserts for fast knife changes with no adjustments and a quiet clean cut