An 11 mm vial crimper is a tool used to seal or crimp aluminum seals onto 11 mm vials. These vials are commonly used in chromatography applications, such as HPLC (High-Performance Liquid Chromatography) or GC (Gas Chromatography), for sample storage or analysis.The crimper enables the manual crimping of the cap onto the vial to create a secure and airtight seal.