The Evil Eye has core numbers of 2.495 and a 0.046 total differential, but its unique feature is in the after-drilling numbers. Due to its distinctive core shape and protrusions, the Evil Eye offers the largest range in the intermediate differential of any symmetrical ball ever made. It features an intermediate drilling range from 0.009 to 0.023, allowing the driller to leave it as a symmetrical ball or modify it with an asymmetrical drilling for the customer. This black beauty uses the new HK22C Solid cover finished with 500, 1500 Siaair, making it capable of hooking and handling a significant amount of oil.