Removes the most difficult locking lug bolts quickly, safely and without damage to wheel or rim, great for all vehicles with lost or damaged locking lug bolt keys. Contains: (Qty.) (4) Nylon internal centering guides, (3) metal external centering guides, (1) metal centering guide for free turning lugs, (2) ultra hard drill bits with tungsten carbide tips, (4) extractors, (1) impact extractor holder, (1) impact extractor remover.