When using an axe, it’s normal to hold the end of the shaft with one’s weaker hand and slide the dominant hand down the shaft as the blade is swung to strike the target.
Today’s invention facilitates this by providing a pair of non-slip grips.

The dominant hand grip (blue) slides on lubricated guides in the shaft so that the normal movement can be smoothed and the hands whipped together with a much higher-impact snap, without hurting one’s fingers.