These vial cap crimpers are essential tools designed for securely sealing 20mm vial caps with precision. The set includes six hand-held crimpers, each engineered to provide a consistent, full finish on vial caps. Ideal for laboratory, pharmaceutical, or chemical environments, these crimpers enable quick and reliable sealing, ensuring sample integrity. Durable construction ensures long-lasting performance for frequent use. Their ergonomic design simplifies use and increases operational efficiency. This set is perfect for users requiring standardized 20mm vial closure.