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Sonin doesn't make these anymore--they stopped about 4 years ago. Any new ones that you purchase might not work, as ours didn't. Read morePublished 13 months ago by El-Nor
Where ever these came from 2 out of the 4 were trash,
The digital display was all messed up. unable to read the numbers.
Great..need to design a steel fabrication calculator with chords and cambers. would have got more stars except no thirty seconds.Published 17 months ago by George Taylor
Ive had an 'inch mate' calulator for many years, loved it for its ability to do fractions.
Finally wore it out and needed a replacement. Read more
both of the calculators stoped working on the first day of use. I am now sending them bac k for refundPublished 19 months ago by Kevin Doktor
THis calculator is great for adding fractions. I had a job with lots of fractional measurements, and it was accurate and saved me lots of time rather than working with pencil and... Read morePublished 20 months ago by The Lazy Cook
I use this item in my woodshop all the time for calculating measurements with fractions,millimeters or boardfeet. Instructions were easy to follow and understand. Read morePublished 23 months ago by roy a. fussell
I live in a country where construction materials are expressed in metric and inches at the same time (2"x4"x 3.2 meters), and I think and build in inches using U.S. Read morePublished 23 months ago by cenc