by nostromo » 2 Mar 2010 8:40
OP- I've had one for years and rarely used it. When you're doing key and decoder work I needed not only pin depth but spacing, too. The 'slot' tool isn;t wide enough for it.
But it IS reliable and easy to carry around for what it is. Less likely to get damaged, too. If you make your own be sure to 'calibrate' for accuracy by measuring the actual widths.
When I first got started, the most lusted for tool in the shop was the Jensen Microdial caliper. ABout $60 at the time, I think. This was late 70's.
Harbor freight has 6" calipers for about $10 and you can often find a 50% off one item coupon online.
Best of luck!