✔️ 4-SPEED ADJUSTABLE POWER: The power control can be adjusted to four gears, which can be adjusted according to different construction needs. Low speed gears are suitable for soft substrates, while high-speed gears have strong penetration and are suitable for high hardness substrates. ✔️DOUBLE SILENCER: Thicken the muffler cover to reduce noise. Operation takes only 1 second, and the top can be easily nailed, making the building environment more comfortable. ✔️ COMFORTABLE DRAIN DRAIN: Hold the muffler sleeve with your hand, squeeze it several times and remove the slag for the next operation. Automatic slag discharge and heat dissipation system, without frequent cleaning, removes most slag and heat, saving more time and improving work efficiency. ✔️THICKNESS MATERIAL: Reinforced and thickened alloy steel striker is made of high quality military materials and special technology to ensure a highly stable pull, has a service life of more than 100,000 times, is not easy to break and has little loss. ✔️STABLE PERFORMANCE: Multiple mature equipment and strict processing procedures make the product surface smooth and stressed evenly. This concrete nail gun adopts the latest small head design, suitable for ceilings. The handle is detachable and can be attached to an extension rod for work, allowing you to make high ceilings without climbing. (excluding extension rod) ✔️SCOPE OF APPLICATION: (different nails are suitable for different scenarios) Ceiling of tools, installation of electric, water and electrical boxes, monitoring, bridges, DIY, air conditioning, installation of ventilation ducts, elevators, row cards, fixing guide cards, etc.