Besides the tools I've purchased over time....
Band-aids, cheap whiskey, fire extinguisher, cheap beer, eye protection, cheap vodka, ear protection.
Then a place where you will not get disturbed, with ear protection to avoid hearing distractions, and eye protection to avoid seeing distractions.
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."
Life Member NRA
Life Member NAHC
Former President of the ECPT (Eifel Combat Pistol Team)