Knipex QuickSet Cobra 8721250 Pliers: One hand operation mostly. Why not skip the button altogether? - YouTube
Wasserpumpenzange Cobra Quick Set 250mm 1/8"-2" Knipex - Lange
Knipex - KNIPEX Cobra® QuickSet Hightech Water Pump Pliers The benefits of working with the Knipex Cobra are plain to see: these water pump pliers are light and stable, thanks to the
Knipex Cobra 7-1/4" & 10" Plier Set Adjustable Water Pump Pliers w Comfort Grip - Bowers Tool Co.