1. Crimper tool can be used for injection vials, chromatography vials, glass cartridges and so on with click neck. 2. Crimper tool have different size: 8mm, 11mm, 13mm, 15mm, 18mm, 20mm, 22mm, 25mm, 28mm, 30mm, 32mm, etc. 3. Crimper tools accept to be customized with the perfect size according your request. 4.