Given that the pen was designed for laboratories, it was made of hygienically safe medical grade plastic. That is why it is suitable for use in beauty salons, where hygiene and cleanliness are important components of the work.

The handle is comfortable to hold due to the fact that its diameter is only 16 mm at the point where you wrap your fingers around it. In the center, of course, this value will be larger - 30 mm. And its weight is 208 g, so even during long work, the nail technician will not get tired of holding it in his hand.

The maximum rotation speed of the drill bit in the H37L1 handle is 35,000 rpm, and the torque reaches 2.9 N-cm. These values will be enough to perform pedicure procedures without stopping the drill bit at low speeds.

The body of the handle is designed in such a way that air penetrates through the ventilation holes under the body, blowing and cooling the motor. This improves its performance and prevents overheating.

To simplify the replacement of the drill bit, we used one of the simplest collet clamps - the Twist-Lock, which is familiar to many manicurists. Due to its simplicity, it allows you to change the attachments in just 5 seconds: open the collet by turning to the left, change the attachment, and close it by turning to the right.

It is also worth noting that the handle does not produce much noise during operation, and vibrations have been minimized as much as possible. And thanks to high-quality bearings, the H37L1 is completely free of such a working phenomenon as radial runout on the shaft.

In general, we can say that the H37L1 micromotor pen is a small but quite effective device for manicure and pedicure procedures. It is safe and ergonomic, and therefore suitable for both beginners and professionals.