V-Block Used to Hold the Cylindrical Objects in place for marking centerlines with the Surface gauge. - To Hold down the rectangular job piece at 45° angle to the vertical direction. - Used as supports while holding long Cylindrical bars parallelly (They can be two of them or multiple V-Blocks based on the length of the cylindrical object.) - Can also be used to check the roundness of the cylindrical objects. We have Vblock of crystal make in multiple sizes. Please contact for more details.