Uncle Al
Survivor
Unless it's changed very recently, you can't put a tempered blade on a pickaxe. I constantly try and forget that TFP don't consider a pick as bladed...Just odd, because the weighted head does nothing; the tempered blade does give 10% block damage. On iron blocks, for my steel pickaxe it's 10 more damage, for the auger it's 3. Pretty meaningless, but free damage anyway.
Are you using a mod or has this finally changed?