The best MB20 that we have ever had. What?s new? ? Higher speed of up to 34,000 rpm for finer, more precise work. ? The motor is protected from overloading by an automatic cut-out. ? Restart protection provides a high degree of safety. ? Prolonged motor life through optimum dust protection. Inexpensive to purchase and maintain. Safe to operate. ? Cost-effective universal motor in a sturdy plastic shell. ? Automatic cut-out if wear occurs to the carbon brushes ? Soft start. ? Degree of protection: IP 20, Protection class: II Specifically designed for versatile use in mould making ? Constant speed under load. ? Uses various quick-change hand pieces for milling, grinding, polishing, brushing and filing. ? The machine can be operated standing upright or suspended from a hook.