- Jun 05, 2018 -
Positive reversals are clockwise and counterclockwise rotation. They are commonly used in electric drill and electric hammer tools. For example, the electric drill is used to turn the screws forward, and the screws are reversed. Most of the electric hammers with positive reversals are light electric hammers (such as HANGBO's products). They can be installed with electric drill chuck with the adapter, so there is a positive reversal. Even if drilling with an alloy drill, if stuck, it can be easily reversed.