Nut and Bolt Thread Gauge - 44 PCS Nut and Bolt Checkers Individually Housed in Case (23 Inch & 21 Metric) Specially Suitable for Size Check on Tricky and Narrow Area

I love it. Very handy tool. But, buy this one, i ordered a different one that was aluminum it was pitted badly and one was dented.

Good gauge set, easy to take to a piece of equipment with missing bolt to find what size needs to go there.

I have not used any of these yet. If they get used in the future and break easily, I'll come back here and update my rating.There seems to be some confusion over whether these are made of steel or aluminum. They are 100% made of steel. I attached a picture of two of the gauges stuck to a magnet.For anyone wondering, the top lid is removable. I stored it in my roll cart with the lid off for convenience.

Love these, should have ordered them earlier. I do metal and wood working, and use the frequently. Great product.

I ordered this thread gage kit to replace the “string of pearls” type gage because it’s somewhat unwieldy and tends to come apart while using. This kit simply replaces the “string” cable with a durable case and a panel board that holds each size gage individually. This allows for much greater mobility for sizing male and female threads. This kit has both SAE (inches) and metric gages. And each size graduation is clearly marked on BOTH the holding panel and each gage.

Excellent set that covers all of the basis. Quality is excellent. Strong buy.

The metric thread gauges (for lack of a better word) are black and the english are silver, very easy to identify. I also wanted steel gauges not aluminum. Although steel is less colorful than anodized aluminum, bright colors like blue and red were not important to me. Steel is much more durable and resistant to wear and crossthreading. The case is well designed and high quality. The hinges and closures have real hinge points not flexible plastic that will break after repeated use. The individual gauges are well marked, as are storage positions. Although the same small font necessary to label the small sizes is used on all. For those with degraded eyesight or in dim light it may be difficult for some to read with the naked eye. I am 71 with weaker eyes and I can read in normal light but you have to look closely. The small font used on all is necessary on the small gauges. There are two sets of markings on the storage box and both are very easy to read, so if you keep the gauges stored properly you will not have any problems. Overall this item very well thought out.

This is great help for those frequent "what size is this" questions that arise when trying to make simple home repairs. Very easy to identify the correct nut or bolt needed to get the job done.