★ High quality aluminum cutting wheel featuring design with sense of depth. ★ There is a weight compared with resin wheels, the point is that the machine is difficult to splash. ★ The center of gravity of the entire machine is lowered, and the running stability is also improved. ★ Weight of about two mass damper (9 g) with 2 wheels, effective in lowering the center of gravity of the machine. ※ Please use it together with reinforced shaft.