Comments by judges:
The design of a product that integrates multi-function has also become one of the current design directions. This product has a 20V brushless active impact drill, a classic pistol-type appearance design, subdividing 18 torque gears, which is suitable for different working conditions. In addition, it has electric drill and rotary impact function, and uses steel balls, guide rails on the output shaft, springs and other parts to add the axial impact function to the product, effectively solve the possibility of drilling tools in hard concrete walls, partially replace the function of the existing electric hammer, and do not increase its size, weight and cost for the whole machine, truly realize the multi-purpose of one machine, Simple replacement of complex goals, high-quality work on different materials such as wood, metal, concrete, etc.