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 purchased this item for construction class works great easy and simple 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'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, inchesfeet+fractional inchesfractional inchesAlso, 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.

Needed to replace existing model.

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

Purchased for a friend. Fast delivery needed for welding school!!

This calculator rocks! It is exactly what I needed. I'm an apprentice electrician and having the trigonometry functions is invaluable. The ability to do fractions feet and inches and convert to metric is a plus. This is a must own you are in the trades or are in trade school.

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.

Love it

Incredibly useful if you do any sort of trades work or are in general just a handy person.I use this thing pretty much every day at least once.Four stars because it will not for an armadillo case.

Very useful for instant Metric to Imperial measurements, and vice versa. Functions well as a scientific calculator