Suitable for cutting all kinds of fabrics from thin materials to thick materials. MOTOR-Originally developed motor. It assures a smooth cutting operation with excellent cutting power and low motor temperature. AUTOMATIC OIL LUBRICATION DEVICE- Oil can be supplied automatically from oil reservoir to the guide metals and cross head. And the internal oil guard keeps other interior parts clean. AUTOMATIC SHARPENING DEVICE- There is an abrasive belt sharpening device. Just press down the sharpening lever, and the blade can be sharpened automatically to maintain the most suitable edge of th blade. STANDARD - Thinner and flat type Standard makes the resistance of cutting material lower, and bigger blade strokes makes cutting smoother.. OTHER - Fan-guard and starting switch cover are equiped for safety reasons.