Autosampler Vial Crimpers and Decappers. Thermo Scientific™ Manual Crimpers, Decrimpers and Decrimping Pliers. Achieve secure, repeatable crimps or remove seals with minimized risk of damage. Pricing and Availability. Fisherbrand™ Decapping Heads for Pneumatic Hand-held Crimping Tool. For use with Pneumatic Hand-held Crimping Tool.