Display mechanism of a pneumatic tool

A display mechanism of a pneumatic tool comprising:

• a holding element having
• a surrounding wall;
• a display recess formed in a top surface of the surrounding wall;
• a spacer slice mounted on an inner surface of the surrounding wall and located at a spaced interval with the surrounding wall;
• and
• a mounting recess formed between the surrounding wall of the holding element and the spacer slice;
• an operating element inserted into and screwed with a top portion of the holding element and having
• a thread portion protruding downward from a bottom of the operating element;
• and
• a receiving slice protruding downward from a bottom edge of the operating element, rotatably inserted into the mounting recess of the holding element, and having a receiving recess radially formed in a bottom surface of the receiving slice;
• a display portion attached to a wall of the receiving recess of the receiving slice, inserted into the mounting recess of the holding element, and having
• multiple display marks disposed at intervals.