SWTC-26 Nut & Bolt, Inch & Metric, Original Version

Nice design for having a compact, cable-mounted system for checking both male and female, as well as SAE and metric threads. I have it hanging off the side of my tool chest, so it is very handy and very utilitarian. Recommended.

These are well made. I use them for work. Very handy to have. They are both SAE and metric.

Been wanting one of these for some time just for my home garage work. Chose this for the quality, good price and made in USA. That was last year. This week I went to check a nut and found that instead of 1/4-20 and 1/4-28 checkers I had two 1/4-28. No big deal I guess because it didn't fit the 28 thread one so I knew it was a 20-thread nut. But I reached out to the manufacturer anyway via email on a Thursday afternoon. Within 15 minutes I had emails from their sales team and president/CEO promising they'd send out a new one. Was stunned to find the new one on my doorstep Friday morning! It helps that I'm one state away, but wow ... what stellar service after the sale. Replacement unit is perfect and I can gift the "defect" to a family member. No reason to order anything else.

Don't guess anymore,.this is a good set. The only thing is having all of them together on a wire. I fixed the problem real quick. Get a magnetic bar from harbor freight and put them on it. What a time saver and you can keep them all handy.

This is a Good idea, and one I was planning to make for myself, by buying a single screw & bolt of every size, then adhering them to a board, so I could test at will, like in the hardware stores. That idea would work, but if you have a hole, & can't pick it up to screw it into the threads on your board, you're stuck.This is the same idea, but easier to take to the hole, rather than taking the whole piece to the board.Pros:* The Price is high (but the cheapest option I found for a similar item).* This saves me time - Lots of time! Instead of screwing endless unknown screws into unknown holes, I'm usually ID-ing the correct size hole within seconds. Then I can use the opposite end to find the right screw after just a few tries.* At the very least, I know if it's metric or SAE, so if I can't find a screw in my pile, I can buy the correct size immediately, and confidently.Cons:* The sizes are marked on each one, but barely. It's a white stamp, not embossed, so it will wear away soon, I'm sure.* These are incomplete, ie, not every size is on here, but the most common ones are. I haven't had an issue yet, but we'll see over time. If I do, I can just go buy a nut & bolt of that missing size, to compliment my current array for a lot less than buying the bigger, more complete options of this set.* The wire these are attached to is sturdy, & I needed some Bolt cutters to get it off. As others have mentioned, bringing a screw/bolt to the sample holes is super easy, & not an issue at all. But if you need to screw one of the screw ends into an unknown hole, this is not going to let you get more than about a half turn before you find yourself doing some crazy maneuvers to try to get that whole line to twist around repeatedly. Not convenient.Solution:* I cut mine off, & restrung them onto 4 much smaller lines: 1 small sized Line for SAE, & 1 small sized Line for Metric. Then I did the same for the 2 big ended lines. MUCH more convenient, & it's pretty unlikely you're going to grab the wrong line very often. (The jump in sizes is pretty obvious at about half way, on each type, so you're gonna see it with the naked eye).* I also used a much more flexible line, & with so few excess bits per line, it's wildly easier to screw into an unidentified hole, without the hassle. I can always restring them later, if the weaker line breaks. I did use the spacers for thread protection, & then placed all 4 of them in separate baggies, for further protection, since I primarily use the smaller ended parts.Overall, this is a good solution, with some issues. The price was enough lower than other options, that it makes the adjustments worth it to me, and the Time Savings is well worth the money spent, if you find yourself guessing on screw sizes very often - as I do.

This comes in handy to find the right bolt or nut, both European and American sizes. I've used it several times.

I was not sure I would like this over the "board" type. I'm glad I got this one because it takes up so little room in my tool section. They are good metal and deeply stamped with sizes. There is enought slack and bendable enough to use on on a bolt in place. I would buy these again.

This is a surprisingly handy tool, or at least I think it is.I am more than a little obsessive-compulsive about organizing junk that I have, and recently I took it to a new level by purchasing a set of wall-mounted parts drawers and this. One rainy evening I went out to my garage and started going through cans and bins full of screws, bolts, nuts and washers that I had accumulated over the years and began sorting them out into parts drawers, putting beautiful printed labels on each as I went. Hours, nay, days later my job was finished, and I now have every part of practically every size an arm's length away.Seriously, this is a very handy tool for determining the size of bolts, nuts, and washers, as well as the coarseness of the threads, and if you have the patience to go through an hours-long sorting exercise like I did you will learn to visually recognize these sizes and coarseness of threads visually, so that eventually you won't need this tool. As someone who previously couldn't tell a #10 from a #12, or a 24 from 32 thread, this has been a very valuable learning aid, and it has helped my OCD greatly.