Gauge, Blue

Great tool once you know how to use all the components of the product. Great design and good to read.

This is a basic tool to measure most common sized bolts. I use it occasionally before going to the hardware store, but most hardware stores have more accurate bolt size indicators mounted to the bolts shelves. I'm still glad I have this tool as it saves me time and money on occasion.

I keep a large assortment of fastening hardware (not all of which has been sorted...) and have found this gauge to be indispensable. It can be a real pain to try to find a screw or nut of just a certain size without it. It is of a simple go/no-go design making it easy to use. It is another product from Rockler and is made from a heavy gauge plastic which seems to be pretty durable.I bought this through Amazon but since it comes from Rockler, they have what seems to be a pretty high shipping charge attached. If you happen to want one, I recommend checking out other Rockler products you might like/need as the shipping charge increases very little when ordering multiple products.No shop should be without one.

I used this to measure my Tractor's wheel bolts and threads when I had problems mounting spacers. It told me and the vendor what we needed to know to send a replacement spacer set.Bolt diameter was accurate but you have to be very careful and look closely at the tread pitch fit. I thought I had it in mm but it turned out the pitch fit even better using the standard side. I would like the thread fitting bumps to be taller and more obvious. Still, it works and is kept handy in my home workshop.I did have one really large nut that the gauge did not have big enough measuring stub but most of the time this tells me what I need to know. Just pay attention to the way things fit it.

I got one of these years ago as a freebie with a subscription--still have it and use it often. I am, however, splitting my workshops--the wood shop will stay down and the metal will go to the garage. This means splitting out some hardware and tools I decided to to get this improved model for the metal shop as I still get new and used hardware in bulk and need to identify it. Also, this is helpful when you need to size a replacement for a broken screw or bolt. You can measure lengths in SAE and MM as well as a pitch guide for threads. Coarse and fine nut/washer posts too. I like this one and it is already on my toolbox in the garage on a magnetic hook. Also from Amazon, I have a second sorting and counting tray that makes putting the loose items back in the container easy. The two together make most hardware jobs much simpler and I recommend both.

As advertised. Shipped quickly. No more guessing the actual bolt sizes (Yes, the threaded part, not the head). Measures both Standard and Metric bolt diameter, length in inches and millimeter. Has a decent thread pitch guide on the back and measures nut sizes (standard only). They've managed to pack a lot on this little piece of plastic which is thick and durable hard plastic. I would totally recommend.

I've been changing out bolts and screws that show signs of rust in some items that I've had for many years. I don't have to bring a bunch of different screws to the hardware store anymore. I guage them at home and also write down the length so, the info is in my cell!This was a great investment!

This is good for getting a general idea of your screw/bolt diameter, but the holes are very sloppy. For example, is your bolt 8mm or 5/16"? You can't tell because it wiggles around in both of the holes. The thread "gauge" is pretty worthless and is off by at least 1 size. I regret purchasing this unit.