Patented Phillips II with ACR Drive Drive System * Includes Screws: 40 pcs #7x5/8" Pan Head, 36 pcs #7x1" Flat Head, 28 pcs #7x1-1/4" Flat Head * Includes 20 pcs Pan Head, 36 pcs Flat Head screws * Includes Screws: 16 pcs #10x2-1/2" Pan Head, 16 pcs #9x3" Flat Head 1 Driver Bit and 1 Screwdriver * Cutting Point for Hard woods and under head cutting ribs so screws won"t back out.