I'm not much of a handyman and whenever I try to fix something in the house or assemble some new furniture I always seem to screw it up.
This handy little Palm app is designed to help you eliminate DIY disasters by performing the precise calculations you need for your wood-working, metal-working or general home maintenance. Specifically, the software is for converting decimal inches into fractal inches for the purposes of precise drilling or cutting.
The application has a very primitive interface, which makes this one dead easy to use. You just need to enter your measurement in decimal inches and hit the 'calc' button. CaliperTool will then quickly show you the closest fractional inch measurements (at a 1/64 inch resolution), as well as giving you the measurement in millimeters.
Unfortunately, the program won't convert from millimeters to fractional inches, but it does have a nice feature where it displays the closest letter and number drill bit size for the thing you've measured, if appropriate.
If you're fed up of botching repair or construction jobs and want a quick way to change decimal inches into fractions then CaliperTool does the job without any nonsense.