Purchased this to apply Kroil penetrating oil to the upper studs of the front shock absorbers on my 2010 Jeep Wrangler Islander in hopes of loosening the nuts which were severely corroded onto the threaded shock studs. This pump oiler has excellent pumping action and volume dispensing of lubricant which is what I was after. It really gets the job done as moving liquids go. And it is well made with quality sweat brazing on the inner workings of the pump which are quite evident. The external handle and pump lever are strong and you can feel the force of the pump working to move the solvent or oil you are desiring to apply to whatever. This is extremely well made, offering many years of reliable service to whatever you use it for. I highly recommend!!!!