The Forster 6.5mm Creedmoor Field Headspace Gauge is a precision gunsmithing tool manufactured with exacting standards to ensure accurate testing of rifle chamber dimensions for safety and performance.6.5mm Creedmoor Field Headspace GaugeDurable steel construction for long-lasting precisionTests for dangerous headspace conditions per S.A.A.M.I. specificationsProfessional-grade tool for gunsmiths and rifle buildersCritical safety component for proper rifle chamberingEssential for any gunsmith working with 6.5mm Creedmoor rifles this field gauge helps identify chambers that are dangerously close to or exceeding maximum safe dimensions preventing potential safety hazards and accuracy issues.