OMP Axis Sight Leveler – universally assists in tuning sight bars and scopes for precision adjustment of the 1st, 2nd, and 3rd sight axis. Guarantee perfect level by using with a Versa-Cradle Bow Vice. The 6,000 series machined aluminum slight leveler is custom fit to seamlessly integrate with any Versa-Cradle clamp. For those without a Versa-cradle, the flat surface of the sight leveler accommodates any C-Clamp. The three set screws allow for easy adjustment to bring your sight to level status before making axis adjustments.