Patent attributes
A tool holder includes a base, a rotating sleeve, a segmented positioning member and an anti-dropping member. The main feature is that the base includes the chassis and the convex shaft formed with the abutment plate. The rotating sleeve includes a seat and a quadrangular sleeve joint with a hollow chamber formed therein. The seat is formed with a perforation for the convex shaft of the base and the abutment plate to pass through and enter the hollow chamber. The segmented positioning member includes a blocking part formed on the convex shaft, and first and second inserting parts formed at the corresponding positions of the seat. The anti-dropping member is located in the hollow chamber, and includes the anti-dropping flange formed on the convex shaft; thereby forming both the segmented positioning member and the anti-dropping member set within the projection range of the lateral contour of the quadrangular sleeve joint.
