The MEC shell checker is a compact yet essential tool that helps reloaders ensure that their shells are sized and chamfered correctly. This checker is designed with precision-machined holes that are clearly marked with "GO" or "NO GO" labels to indicate whether the shells meet the necessary specifications for roundness and size. The MEC shell checker is made from durable stainless steel, making it a long-lasting and dependable addition to any reloading setup. It is compatible with a wide range of gauges, including 10, 12, 16, 20, 28 Gauge and .410 Bore, providing versatility for different reloading needs. Whether you're a novice or an experienced reloader, this tool allows for quick and accurate checks of your shells, helping to ensure that your reloaded ammunition functions properly. Its affordability and high quality make the MEC shell checker an essential tool for maintaining the reliability of your reloaded shells. Machined holes ensure exact alignment and stability in use Built with stainless steel for rust resistance and maximum durability Labeled GO and NO GO to easily check case size and roundness Fits shell sizes 10 gauge, 12 gauge, 16 gauge, 20 gauge and 28 gauge, as well as .410 bore