Large high-power pure copper core motor, pure copper core motor, strong power, high reliability, and long-lasting stability; Three in one multifunctional, high-power and powerful, electric hammer/electric pile/electric drill, one click magic, multiple needs, easy handling, easy dismantling of drilled walls/concrete; Circulating heat dissipation, three-dimensional porous, circulating heat dissipation system, accelerating machine heat dissipation speed, fast heat dissipation effect 360 ° rotating auxiliary handle, flexible to adapt to different usage needs, and the angle can be freely adjusted according to needs; Alloy quenched gears have high strength and long service life. Bold alloy gear design increases modulus, prevents tooth slippage, Manufacturer: TRDEWR