The Redding Case Neck Gauge with Indicator is an essential reloading tool that provides a fast and easy way to sort cartridge cases by neck wall thickness and uniformity. This precision gauge helps ensure consistent case preparation for improved accuracy.Redding Case Neck Gauge with Indicator (Model RDNG-26400)Measures case neck wall thickness and uniformityTwo mandrel sizes accommodate .17 caliber to .338 caliber casesFast and easy case sorting capabilityEssential tool for precision reloadingPerfect for serious reloaders and competitive shooters who demand consistent case preparation and optimal ammunition performance. This gauge helps identify cases with uniform neck thickness for improved accuracy and reliability.