Great price for the money

Good

Using to adjust valves on my BMW M20 engine.

It's a nice tool but I can't give it 5 stars because it doesn't have the .20 that my pressure washer has for spark plug.

I have no idea if the other reviews are accurate about the measurments being off but for my use case all I need is consistency. I got tired of using the piece of paper bed leveling technique, since paper compresses and isnt all that consistent. Using the 0.05mm gauge produced near perfect bed adhesion instantly with no fiddling. Just twiddle til the gauge just slides freely. -1 star for the tool oil, which you need to make sure to remove, because if that gets on your bed its gonna be real bad. I would prefer something that didnt need the oil for rust prevention, as other reviews mentions the gagues rust if you remove the oil completely.

Easy to use and better than the other spark plug gap.

Pretty much the only set of feeler gauges you'd need!