Carry On Bags: Yes (Special Instructions)
Checked Bags: Yes (Special Instructions)

Tools 7 inches or shorter (measured from end to end when assembled) may be allowed in carry-on baggage. 

Power tools and all tools longer than 7 inches (measured from end to end when assembled) are prohibited in carry-on baggage; these items must be packed in your checked bags.

 For tools powered by lithium batteries, see FAA regulations.

 The final decision rests with the TSA officer on whether an item is allowed through the checkpoint.