Includes: Standard and Deep 5/16" to 3/4" and 8mm to 19mm; Universal 3/8" to 3/4" and 10mm to 19mm; External Star E5 to E16; Star T20 to T55; 3", 5", 10" and 15" Extensions, 3/8" Dr. Impact Joint
Forged from the finest chrome-molybdenum alloy steel, the best choice for strength
Radius corner design extends the life of fasteners; design drives the side of the fastener instead of the corner
Black oxide finish and has etchings for identification