I used a vibrating multi-tool for removing undercoating from the cab floor. I used a serrated blade on it and it worked pretty well. That's another option for you, and you may already have one of those. I got mine from HF. link


Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.