Alvin & Co.
Data Selector Template

I design wooden and aluminum fixtures and jigs for building acoustic guitars in my workshop. I used this data selector when I used to design test fixtures for missiles from aluminum and magnesium. It is very useful for specifying the size of holes, bolts and layouts for wrench clearances.

awesome! been using since 1988. lost the original. alvin went out of business or discontinued. nice to be able to find online.

This is a handy tool for use during new designs. It helps with layouts and also helps with screw and thread pitch selections for my designs. Very handy! And well made too.

I have used this item fig so many years in my tooling designs that I just wore it out and had to replace it. Great information at your finger tips.