Makita DHS680Z 18V Cordless Brushless Circular Saw is crafted from premium quality material to make it robust and long lasting. High cutting performance with up to 5,000 rpm no load speed. Automatically changes the cutting speed according to load condition for optimum operation. Electric brake for added safety. Automatic Torque Drive increases torque to power through any cut. Blower function to clear wood dust from cutting line. Large base for more stable operation. Brushless motor enhances operational performance as well as battery longevity. Blade Diameter : 165 mm.