Bolt Size and Thread Gauge,Nut and Bolt Thread Checker 23 Inch & 21 Metric Sizes,44 Male/Female Nut and Bolt Size Gauge,Individually Assembled Thread Gauge

Great item works well and seems to be reliable over the multiple use 👍

Very limited, too many gaps in the gauges, the first thread I tried to gauge failed so for me it was a waste of money, personally I wouldn't recommend it for that price 👎 PS Nice case though.

I am greatly pleased with this bolt and thread gauge set. It is easy to use and I have found it to be accurate. I particularly like the variety of sizes of both standard and metric threads. So far, I have not found a nut or bolt in my 50+ years of collection that I have not been able to identify. But I do have well over a couple thousand more pieces to go. The only negative that I can see (other reviewers have said similar) is that the size markings on the rubber matting will likely wear off with time or if you get WD-40 or similar on the mat. But the sizes are listed on the inside cover on paper so you won't get lost in identifying. Overall, I am greatly pleased with this set and recommend it if you need a thread gauge. It's price-point is well below other products with less variety of gauges. I wanted a US made set but the pricing and lack of variety was a negative.

- Love the fact that you can pull these out separately and bring them to a stud or threaded hole (Something a gauge board can't do - Lots of variety and sizes, haven't come across anything that's not included yet - Accurate, so far they are accurate and machine well, used one to determine what lug nuts to buy - The case is nice and good construction easy to carry and keeps them organized - Definitely handy and needed for checking nuts, bolts, and HOLES instead of trying to reuse a rusted piece or scratch your head at the hardware store and spend 10-15min comparing the original Would recommend 10 out of 10

The gauges look nice. The size markings in the case and on the gauges are easy to read. The individual gauges fit snuggly in a foam type of material and won't fall out. The case is solid plastic with good closures for secure transport and storage. So why four star? The problem is that the individual gauges can drop down into the foam until they are flush or slightly below the surface making it extremely difficult to remove the gauge without something like needle nose pliers. Accuracy? I guess they are accurate, but unless you test each piece how would you know?