On Aug 9, 5:27*pm, "
wrote:

I bought an Arrow CT50 LiIon stapler to do some insulation work. *What a total
waste of money! *It won't even stick a 1/2" staple into SYP. *

So, get 1/4" staples. SYP is 'southern yellow pine', I trust?
In toughness, it comes in at 470 in-lbf, a little higher than red
oak at 440 in-lbf. Half inch staples in that wood isn't an easy
test.