When the general metal lathe turning down to 2000 rpm rev / min. Tool is high speed steel, machine soft, nonferrous metals, precious metals, and the use of intermediate block heightening, more expanded to a diameter range 50mm. You can use the three-jaw chuck or collet (1 6mm) clamping the workpiece, center gongs high 25mm, center distance of 135mm.Processing materials maximum diameter: 45mm. The transformer has over-current, over voltage, over temperature protection. 1 x set Mini DIY lathe(As picture show).