Patent ID: 7322265

Claim:
A compound screwdriver head, comprising a body, a first working portion, a second working portion, an awl portion and a plurality of working grooves, one end of the first working portion positioned on the body, the other end formed with the second working portion, the awl portion disposed at one end of the second working portion; the first working portion including a plurality of first abutting surfaces, the second working portion including a plurality of abutting surfaces that parallel to the first abutting surfaces respectively, and the first and second abutting surfaces being connected by a connecting surface having an outer ring and an inner ring, the second and first abutting surfaces being connected by the inner ring and the outer ring respectively, and the size of the outer ring being larger than that of the inner ring; wherein first working portion is designed for small size screws, and the second working portion is particularly designed for large size screws.