🧹 HFS Utility Vacuum Pressure Blk Steel: Ultimate Cleaning Power for All Surfaces Review

I wasn't expecting 100% accuracy for $7.50 but I expected them to read roughly the same gauge. I was wrong! I ordered four of these to make a carb sync tool. When I opened the boxes only 1 out of 4 showed zero with no load. The other three had 3 different indications. I spent an hour taking it apart and trying to get it to read zero and still respond to a small vacuum load. I never managed to get all 4 to read the same under constant load. I gave up. I will order something from another source…

It's normal for a vacuum gauge to need to be reset to 0 after air travel. However, what is not normal is that there is no way to null this sensor. The housing can only be opened with brute force and the needle can only be "set" back to position 0 by carefully levering it off and reinserting it in position 0. This is of course an undesirable reset method for a sensor. I would advise anyone reading this to get a liquid/glycerine filled gauge with a small rubber stopper on top instead. Resetting…

As they often say around here, "You get what you pay for”. Definitely not for critical applications. If you just want to know if a vacuum is present, that's fine, but I wouldn't trust the readings to be very accurate. In my case I use it to control the vacuum in a vacuum wood lathe chuck and in most cases I can work for this use as long as I have a vacuum of 1/2 to 2/3 full scale given that that wood is very porous at first and I just want to hold it to shut it down a bit. What I found was that