BETOOLL 8pcs Petrol Engine Cylinder Compression Tester Kit Automotive Tool Gauge

Note: I bought the "Premium" product. For $7, I figured ensuring a good gauge was necessary.Review: Excellent product. Cheap case, but good enough which is all that matters.Just remember one thing. If you use the adapters, tighten them to the hose fitting with wrenches FIRST!!! I didn't and after testing the first cylinder (hand threaded in), the adapter unscrewed when I removed it and stayed inside my head. Even worse, despite the hex head on the adapter, no socket would fit in the spark plug bore!!!After panicking, I had a few ideas. Fortunate for me, my father is a 60-year mechanic to run my ideas by!!! Dad suggested using an extractor, but I didn't want to destroy the adapter (longer threads than on hose) and I didn't have the right size extractor anyway. Oh boy!!!Solution: After removing the rubber o-ring (with a pick) to not damage it, I put super glue (Dollar Tree, $1.25, which I always have on hand) on the brass threads and hand screwed it into the hand-screwed-in adapter. I left it for a few minutes, and then it removed the adapter when I unscrewed it with my hand turning the hose. It worked so well I had to put some serious torque on the wrenches to separate after removal. It might have even worked if I had used a ratchet to tighten!!! Once removed, I cleaned the threads with a small wire brush (Triple pack, Harbor Freight, $2.50), replaced the bushing, and everything was good as new. Crisis averted!!!Be wiser than me. Do it right the first time.Again, excellent product. Spent: $27. Dealer to do the same thing: $200. That's a win for me...

Great tool highly recommended

After about 8 years of saying "I would test compression, but I don't know where my gauge is" I finally broke down and just bought a new one. This caught my eye because of the included adapters, price, and most importantly that it came in a case. Loose tools bother me and I can lose them and have lost plenty, I shop for a case with most everything at this point. What's the sense in owning a tool if you can't find it or that one critical piece? As for the gauge itself it feels high quality, as do all the accessories, and it helped me confirm what I suspected on my newest buying mistake, a non-running Suzuki Carry, by showing me the head gasket is blown. Bummer, but I'm super thankful for this little gauge so I don't have to tear down half the motor blind to find that out!

It was cheap. It worked well.

Works good but one of the adapters had a bur on it so it wouldn’t thread in so I had to tap it to get it to work. No big deal for me but could be an issue for someone else.