Combination Screwdriver Tool

A combination screwdriver tool comprising:

• a tool connector;
• a main unit connected with the tool connector;
• and
• a rear cover connected with the main unit;
• wherein:
• the tool connector has a first end provided with a mounting head, and a second end provided with a first mounting recess;
• the first mounting recess has an inner periphery provided with a first flange, and a plurality of first positioning slots;
• the main unit includes at least one connecting section which has an interior provided with a plurality of first receiving holes for receiving a plurality of screwdriver tips;
• the at least one connecting section has a first end provided with a first fitting portion, and a second end provided with a second mounting recess;
• the first fitting portion is provided with a plurality of first fitting pieces mounted in the first positioning slots of the tool connector;
• each of the first fitting pieces has an outer periphery provided with a first groove positioned on the first flange of the tool connector;
• the second mounting recess has an inner periphery provided with a second flange, and a plurality of second positioning slots;
• the rear cover has an interior provided with a plurality of second receiving holes for receiving the screwdriver tips;
• the rear cover has an end provided with a second fitting portion;
• the second fitting portion is provided with a plurality of second fitting pieces mounted in the second positioning slots of the at least one connecting section;
• and
• each of the second fitting pieces has an outer periphery provided with a second groove positioned on the second flange of the at least one connecting section.