I've had this oiler sitting in its box for I don't know how long. The nipple didn't fit my oiler size so somehow it got pushed to the side & forgotten. So I finally cut the tip off, made a new one & epoxied it on. This has a serious pump! Swiss made unit, built like a tank. One pull of the handle & it it flooded the underside of my carriage coming out both sides. I have never seen that with my existing anemic oiler. I just assumed the passages must be constrictive, pressures up & bends the tuna can trigger. So it will be relegated to old man dribble jobs at atmospheric pressure LOL.