The ultimate cam follower with oil hole, designed to minimize float and jump normally seen in origional cam followers which ultimately loses power. Percision ground outside diameter with smaller chamfered base to give more surface area for extra hi lift cams. Double heat treated and taller to increase follower stability similiar to the origional ISKY type. About 41 grams in weight. Used by many top motorsports competitors especially on new billet camshafts.