Do yourself a favor and wait until you get the new skid plate to drill the locations for the nut certs. I did all the rivets!!lol I have a few extra nut certs now that I am not using!!lol
One other thing is I have a air tool and a hand tool. I always use the hand tool to tighten the nut certs to frame. You will be able to tell how hard you are crimping them. I install them at the set height first then unscrew the arbor about 2 turns then tighten them again. JMHO
Umm, I'm not buying a new skid...
I have the AP ADN14 drill adapter tool and it works very well for setting the rivnuts.
I haven’t seen that Astro ADN14 tool before. It is pretty neat. I was just about to purchase the new river tool from Wurth.
https://www.wurthusa.com/Tools/Rivet-Tools/Riveters-Rivet-Guns/Rivet-Nut-Ratchet-Kit-with-Mandrels-M4,M5,M6,M8,M10,M12/p/5964094803?utm_source=Wurth USA Inc&utm_medium=email&utm_campaign=10306539_Rivet Nut Ratchet Kit-Customer&utm_content=Wurth Electrical Button&dm_i=1ZK1,64WKR,OOCRM5,O4E7L,1
but I might give the Astro a try.
No apology needed...I appologize tot he OP....I did not see that he was just doing this to the stock skid plate. I have used a few different tools and honestly, the Astro hand held has been exceptionally good for the price.