Calculated Industries 4400 TradesmanCalc Technical Trades Dimensional Trigonometry and Geometry Math and Conversion Calculator Tool for Tech Students, Welders, Metal Fabricators, Engineers, Draftsmen Small

I've only scratched the surface of this one, but I already love it. Unlike many other Calculated Industries products, with many highly specialized functions, this is pretty much a standard scientific calculator that has the awesome ability to work directly in different units. It has trig, square, square root, etc. This is what I was looking for. You can work in US units, like: decimal yards, feet, inches feet+fractional inches fractional inches Also, others like pounds, kilograms, mm, m, etc. It has basic dimensional analysis. You don't just plug numbers in and hit a conversion key, it actually keeps track (to a point) of the units for you. For example, 25.4mm and 1 inch are basically the same thing. I can enter 25.4mm times 8 feet, and get a result in square feet - it's smart enough to know what you mean. It does not appear to let you mix units, like lb-ft, for example. It comes in a hard removable case, and has a well written instruction booklet that fits into a slot in the back.

This product is very easy to use. It cones with a small user manual that fits in the back to help. Clearly marked buttons make it easy to use

This is my first trade specific calculator, I'm using it for welding. Works as intended. I have yet to use all the features but it's a good value.

I purchased this item for construction class works great easy and simple to use.

If you’re in the welding trade or even a beginning welding student this is the best purchase you’ll make

Awesome calculator I am a welder and I use it everyday actually just bout another to leave in my truck. Once you learn how to use it you can figure out just about anything

Needed to replace existing model.

Received the exact item, and it appears to be in proper working order, but it also appears to be used or refurbished. See scuffs and wear in attached pictures. This is not an issue to me, but it may be to some, and this condition was not indicated in the item description.