Shaft for power impact tool

A shaft for a power impact tool, the shaft comprising:

• a shaft base having substantially a short cylinder shape, a first end face and a second end face opposite to the first end face;
• a shaft body having substantially a round rod shape with a diameter smaller than a diameter of the shaft base, the shaft body having an end coaxially connected to the first end face of the shaft base, and two actuating slots with same shape symmetrically formed on a periphery of the shaft body, wherein the actuating slots each have a middle part and two distal ends disposed relatively closer to the shaft base than the middle part;
• wherein the shaft base has at least two recesses symmetrically formed on the second end face without communication with each other, and a hole coaxially extending from a center of the second end face toward an inside of the shaft body with a predetermined distance, an imaginary center axis of said hole and an imaginary axis of said shaft overlapping each other, said hole having a first section and a second section communication with said first section, said first section having an opening on said second end face of said shaft base, and said second section being coaxially extending from one end of said first section opposite to said second end face and having an inner diameter smaller than said first section.