Nail drill for easy control

A nail drill for easy control comprising:

• a shell assembly having a mounting cavity inside the shell assembly;
• a motor assembly, provided inside the mounting cavity;
• a circuit board electrically connected to the motor assembly and provided inside the mounting cavity;
• a polish head provided at a distal end of the shell assembly, wherein the polish head is connected to an output end of the motor assembly;
• a speed regulating assembly including a base and a rotary shaft protruding proximally from the base, where the speed regulating assembly is provided at a proximal end of the shell assembly and is electrically connected to the motor assembly via the circuit board;
• and
• a flexible top cover assembly, rotatably provided at the proximal end of the shell assembly where the speed regulating assembly is disposed within an interior space of the flexible top cover assembly defined by inner walls of the rotary sleeve and flexible top cover;
• wherein the flexible top cover assembly comprises a rotary sleeve and a flexible top cover, one end of the rotary sleeve is connected to one end of the shell assembly away from the polish head, and another end of the rotary sleeve is connected to the flexible top cover, and the flexible top cover has a connection portion coupled to the rotary shaft of the speed regulating assembly;
• wherein when the flexible top cover is rotated, the flexible top cover drives the rotary shaft to rotate and a rotational speed of the motor assembly is adjusted via interaction between the base and the circuit board, and when the flexible top cover is pressed, the rotary shaft is pressed and a start or a stop of the motor assembly is controlled through interaction between the base and the circuit board.