Housing of the drive unit made of durable black glass-fiber reinforced polyamide. Removable blade made of stainless steel AISI 304. The set includes a small kit for disassembling the blade. Variable speed, infinitely adjustable with a rotary knob: from 4000 to 16000 RPM. Ventilated motor. The safety button prevents accidental activation of the device. A lock button allows continuous operation without pressing a key.