Wheeler Engineering Scope Ring Alignment and Lapping Kit Combo 1" & 30mmThis kit improves scope mounting two ways. First, the short bars let you know when the front ring is in perfect alignment with the rear one. Second, lapping the inside of the scope rings will reduce or eliminate any shifting of the scope inside the rings and will also remove machining marks that can scratch the finish on the scope. This is "State of the Art" scope mounting and will provide you with confidence that the job has been done right. The kit