The RCBS Hand Case Neck Turner Pilot is just what you need to ensure maximum precision and uniformity when trimming your case necks by hand. This pilot comes in a number of caliber-specific sizes to ensure that your cases are turned accurately to just the right thickness. When reloading ammunition, turning the case neck is essential in order to remove every variable possible to ensure consistency and accuracy. When used with the RCBS Hand Held Case Neck Turner, the RCBS Hand Case Neck Turner Pilot ensures that just the right amount of brass is removed for the specific caliber you are working with.