1. Four-speed adjustment of power control, which can be adjusted according to different building requirements. Low-speed gears are suitable for soft base surfaces, and high-speed gears have strong penetrating power and are suitable for high-hardness base surfaces. 2. The automatic slag removal and heat dissipation system does not need to frequently clean and remove most of the slag and heat, which saves you more time and improves the efficiency of the work. 3. The reinforced and thickened alloy steel firing pin is made of high-quality military industry, using special technology to ensure high and stable firing, with a service life of more than 100,000 times, not easy to break and low loss. . 4. Lightweight design, can be operated with one hand, only 2 cellphones in length, only three steps for manicure, girls, the elderly and children can easily complete the manicure work. 5. Upgraded Small Head Design: This concrete nailer adopts the latest small head design, which is suitable for ceilings. The handle is detachable and can be connected to an extension cord to work, complete high ceilings without climbing. (Excluding extension rod) 6. It is suitable for monitoring installation, air conditioner indoor unit, water pipe, suspension installation, duct installation, etc.