This calculator has numbers all the way through so they wont rub off.

Image from i.redditmedia.com and submitted by Manicearkold
image showing This calculator has numbers all the way through so they wont rub off.

This_Guyyyyyyyy on May 25th, 2018 at 23:33 UTC »

Cool, but, how the hell did you cut the buttons like that?

Awportune on May 25th, 2018 at 23:47 UTC »

You could calculate how many presses it takes to get to the bottom of a calculator-pop

DrKhanMD on May 26th, 2018 at 00:22 UTC »

This is called double shot molding, and is done for exactly this reason. As the buttons wear the numbers aren't worn off. It's quite a bit more expensive to produce buttons like this.

https://deskthority.net/wiki/Double-shot_moulding