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

Great tool highly recommended

Quality is good and worked as expected. Hard to beat the price.

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...

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.