Vise Vise Powerlift/Semi Powerlift: 1/4" FORWARD pitch in the grip Compensate 1/4" REVERSE when drilling the hole in the ball to arrive at the ending desired pitch Example: Normal Flex ( 1/4" REVERSE ) = Drill the hole 1/2" REVERSE because 1/2" - 1/4" = 1/4" Semi: 3/16" FORWARD pitch in the grip Compensate 3/16" REVERSE when drilling the hole in the ball to arrive at the ending desired pitch Example: Normal Flex ( 1/4" REVERSE ) = Drill the hole 7/16" REVERSE because 7/16" - 3/16" = 1/4" Vise Powerlift/Oval Powerlift: 1/4" FORWARD pitch in the grip Compensate 1/4" REVERSE when drilling the hole in the ball to arrive at the ending desired pitch Example: Normal Flex ( 1/4" REVERSE ) = Drill the hole 1/2" REVERSE because 1/2" - 1/4" = 1/4" Oval: 0 pitch in the grip No compensation needed Vise Oval/Powerlift Oval Oval: 0 pitch in the grip No compensation needed Powerlift Oval: 1/4" FORWARD pitch in the grip Compensate 1/4" REVERSE when drilling the hole in the ball to arrive at the ending desired pitch Example: Normal Flex ( 1/4" REVERSE ) = Drill the hole 1/2" REVERSE because 1/2" - 1/4" = 1/4" Vise Oval Nubs Oval Nubs: 0 pitch in the grip No compensation needed   Vise Grip Semi Oval: 0 pitch in the grip No compensate needed   Vise Easy Slugs Available Colors: Black White Green Yellow Orange Purple Blue Red Pink Clear Neon Grape Available Sizes: 1 1/8 1 1/4 1 3/8   Vise Dual Easy Slugs Available Colors: White & Black Green & Orange Yellow & Grape Neon Yellow & Red Pink & Blue Available Sizes: 1 1/8 1 1/4 1 3/8