LZFuiop Dual-Purpose Core Drill Machine - 220v 50HZ 166MM

Product : 1. 1800 w power motors, resistance to overload ability. 2. Three mechanical adjusting torque output super, meet demands more work 3. mechanical safety clutch and electronic safety protector, dual protection auxiliary handle 4. 360 degrees adjustable, easy to operate 5. Chinese manual Diamond drill with water source is used for the punch and engineering samples in the construction and installation, municipal engineering, strengthening works, gas, heating,ventilation, chemical pipe laying, installation of air-condition equipment, and the construction of roads and bridges guardrail Replace the speed method: 1. Clamp the output shaft with a wrench. 2. Rotate the gears at the same time 3. After completion, gently rotate the output shaft and the rotation by hand, let the gear and gear combination 4. If the rotation of the output shaft, the fan blades rotate at the same time, that can prove that gear adjustment is complete.