DEWHEL Aluminum Knob Bottle Jack Valve Release Screw on Compatible with Harbor Freight Hydraulic Press 3/8”Dia Valve Release Screws

Wasn't expectign much but these are very good. They are a erfect fit ! Very good build construction, not loose or too tight/ they fit jsut right adn seem to be made from good quality stock.

This is a heavy duty piece of aluminum machined just right. Fits perfect perfect on my Vevor 6 ton press jack. It has a heavy knurl on it so it's quite easy to get a good grip on it. I am impressed.

I upgraded my HF press with a 20 ton air jack. It is a pain in the butt to have to use the included handle just to release the air. This was a perfect fit over the release valve. So much more convenient!!!

Worked perfect on my Harbor Freight 20T hydraulic jack (which I have installed in a press)

Fit great on harbor freight press. Well made and good knurling for a positive grip.

This product is a nice addition to my HF 20 Ton shop press. It is well constructed, fit and finish is good. When installed, this knob makes it very easy to open and close the release valve without tools

Handle is well made functions great. It is a great addition to my hydraulic press.

This item fits like a glove on a new ram i bought. Machining is very precise and is of great quality. It really does add a new dimension of control to the jack which is great for safety of operation. Ordering more for the rest of my jacks. YES it is that good.