GHHJX Gunsmith Level, Scope Magnetic Level Bubble

First, these are the same levels that are being offered by TXTactical, Zengi, etc. Same product, different name, different markup. They all suck out of the box. For me, both levels were canted to one side, and rotating the cylinder in the housing changed the degree to which they were off. With a little bit of work, though, you can get these to work fairly well. All it requires is a fine tooth file, a tube of super glue, and a level that you already trust. First, dab a drop of glue on each side of the underneath of the cylinder to hold it in place on the base. Once the glue has dried, place the mini level on top of your good level ( on a level surface, of course) and observe to which side the mini level is off. You want to grind off a little bit of the base in favor of the edge that the bubble leans towards. Run the base of the level across the file keeping it flat while applying constant, gentle pressure in favor of the side the bubble was favoring. You want to be careful not to round the base of the mini level while doing this. If you take your time in just a few minutes you will have mini levels at work well enough for their purpose.

These levels can be used for virtually anything that you need a quick portable level for. Some people complain about the levels not being equal.These are very inexpensive levels. If they are not perfectly matched, place on a file and adjust until matched.As far as accuracy, out of the box, ok for general use. A change of 1/16" over 2 feet is clearly noticable if you observe closely.If you want to have these inexpensive levels act in a similar way as my machinists level that can measure 1/10000 of an inch, forget it. However.... Take a 3 foot Carpenters level and find a truly flat surface. Lay a piece of 100 grit wet/dry sandpaper down with a few drops of water on it. Place the level on it at work it in a figure 8 pattern while pressing on the high side. When level is "level", change paper to 400 grit. When your satisfied, congratulations. You have a very accurate level with a magnetic base that cost you a fraction of what you could spend.Don't forget that ultimately the accuracy depends on your ability to center the bubble. The bubble will always go to the high spot.

why not 5 stars? Well because they are cheap chinese plastic. Out of the box, side-by-side, one might have a centered bubble, and the other might be halfway across the center boundary line!So then why 4 stars vs less...Well, I discovered that they can be rotated within their magnet base. So I put them side by side, rotated one until its bubble was identically positioned to the other's. That adjustment makes them very accurate and they were repeatable with high confidence -- that adjust-ability makes them very accurate once tuned. Add the low price and these are a good buy.

These levelers are so perfect! I never thought about getting tiny levelers to use until I saw these - what an awesome idea. You can set them on top of whatever you're trying to level out and they won't weigh down the item like a standard size leveler making the already seemingly impossible job of hanging things even more difficult. They're also magnetic so they'll stick to anything you are hanging that is metal so you don't have to worry about them falling off and banging against the ground like you do the standard size levelers. Also... how cute are they?! 😍 I'll be storing them on my fridge when I'm not using them!

Magnetic bubble level. Works great for leveling your weapon and using the second one to level your scope. Then you can go on to bore sighting. Works great, magnet is strong enough to hold it in place and it's a bubble level so there's really no way for it to be off or inaccurate. Great value for the price and you can't find something like this at a hardware or chain store. I know, I looked at several locally before I went looking for them on the net and found these. These work great.

I purchased these for leveling scopes; to that end they worked well enough. Things to be aware of:They are magnetic, just not very lol I'm only using them for a static procedure so it's alright.Some people have said that they are not all calibrated the same. They are not perfect but not that far off at all. My theory is that two of the set came out of the same mold. If they are both oriented the right way they read the same (the third isnt far off.) If you set them next to say a 24" level, they do tip slightly to one side. However if you have a set that match it doesn't matter because the only thing that matters is that the crosshairs are vertically oriented over the center of the bore.

I bought the 3-pack (same price as the 2-pack, so why not?) and none of the bubble levels agree with one another. With a bit of sanding that can be fixed, but it shouldn’t be necessary and still leaves a second, unfixable problem: all three bubble levels have different bubble sizes, and they are all too small for the markings on the vial. On a quality bubble level, the edges of the bubble will touch the markings.

Got these levels with their magnetic pad on the bottom and they work great. Use the levels to mount a rifle scope or cant level in a hurry. have use the other non-magnetic levels on my crossbows and had to replace them and glad they made these levels with their magnetic pads on the bottom. Works great for around the house as well....use them to move a grand father clock and level it up using these levels...great product....