ORIGINAL: goirish

I use a piece of braided cable like the ones you might use for throttle control. I then cut the head off of a 6/32 or 8/32 what ever size your blind nut is. Then solder the bolt to the end of the cable (make sure the threads go all the way to the soldered end). Put the blind nut on the bolt and then from the back side of the firewall put the cable thru the firewall. When you have the cable in hand on the other side of the firewall then put a washer and nut on the bolt that is sticking out of the firewall and tighten it down to seat the blind nut. You can then remove the bolt by simply unscrewing it. You now have another tool that will be able to use many times. I have used my several times and it makes installing blind nut in an area that I can't get my hand or my wife's hand. The cable that I use is approximately 18" long. Hope this helps