Handypiece features a high torque, direct drive motor which creates minimal heat build up. It’s been proven, when used up to a 80% duty cycle, that no ventilation is required for cooling. Unlike the traditional electric sheep clippers, its sealed motor has no vents, so doesn’t get clogged or fouled by dirt, dust, or other debris. To setup the sweep of your cutter, simply place your screw driver into the slotted shaft at the rear of your Handypiece. By rotating the shaft it is easy to check the sweep of your cutter over the comb.