Overview: 1.Four function switches. 2.19800/32000mAh Lithium-Ion battery ensures endurable run time, suitable for both indoor and outdoor use . 3.Imported lithium battery, power display. 4.Damping auxiliary handle and ergonomic handle make it easier to use. 5.Positive and negative switch, easy adjustment.
Specifications: Maximum Diameter Hole: 6-13mm Charging voltage: 220V Weight:3.2kg