Power source: Electric tools are directly powered by electricity, operating either with a built-in battery or an external power supply; pneumatic tools, on the other hand, are driven by compressed air and require connection to an air compressor to function.

　　Power source: Electric tools are directly powered by electricity, operating either with a built-in battery or an external power supply; pneumatic tools, on the other hand, are driven by compressed air and require connection to an air compressor to function.

　　Power and Torque: Pneumatic tools typically offer a higher power-to-weight ratio and deliver greater torque, making them particularly well-suited for high‑intensity, heavy‑duty tasks such as tightening or removing large bolts. In contrast, the power of electric tools is constrained by the motor and power source; high‑torque models require either a high‑capacity battery or direct connection to mains electricity.

　　Work Efficiency and Control: Pneumatic tools feature rapid start-up with no motor‑induced delay, making them well suited for high‑frequency, short‑duration intermittent operations. Electric tools, on the other hand, may exhibit a slight start-up delay in certain models; however, their stepless speed control offers greater precision, facilitating fine adjustments to both speed and torque.

　　Durability and Maintenance: Pneumatic tools feature a simple design, strong overload resistance, and a long service life, but they require regular lubrication and protection against moisture and contaminants entering the air lines. Electric tools, on the other hand, have motors and electronic components that are susceptible to dust and humidity; overloading should be avoided, and battery-powered tools also demand proper charging and discharging to maintain optimal performance.

　　Safety: Pneumatic tools pose no risk of electrical sparks, making them suitable for flammable and explosive environments (such as oil and gas facilities); however, high-pressure air hoses carry the risk of detachment or rupture. Electric tools, on the other hand, present a risk of electric leakage in wet conditions; models with robust insulation designs can meet standard safety requirements.

　　Cost Comparison: In terms of initial cost, electric tools—particularly lithium‑battery models—generally have a lower unit price than pneumatic tools; however, if an air compressor must be purchased separately, the overall cost of a pneumatic system becomes higher. Regarding operating costs, pneumatic tools consume less energy, resulting in lower electricity expenses over time compared to electric tools; conversely, electric tools incur higher battery replacement costs.

　　Application scenarios: Pneumatic tools are best suited for stationary settings, such as workshops and assembly lines, but offer limited portability; electric tools, particularly battery-powered models, are highly portable and ideal for outdoor use or environments without an air supply.