Reddit mentions of 3M Scotch-Blue 2090 Safe-Release Crepe Paper Multi-Surfaces Painters Masking Tape, 27 lbs/in Tensile Strength, 60 yds Length x 3/4" Width, Blue

Entry Level

• Phillips head screwdriver (intonation adjustments)
  
• Hex key that fits your bridge saddles (action adjustments)
  
• Hex wrench that fits your truss rod (neck relief adjustments)
  
• An accurate tuner (not fucking up the above)
  
  Advanced Mode
  
  
• Small ruler with 1/64 accurate readings or a dedicated string action guage (if you want to aim for factory specs with exact measurements rather than just what feels best for you)
  
• Attention to detail
  
  
  Advanced mode + Fretwork
  
  
• Notched straight edge
  
• Some sort of guitar neck rest
  
• Blue painter's tape
  
• Fret file
  
• Fretboard leveling file
  
• Fret dressing file
  
• Sandpaper range from 1000 to 12000 grit
  
• Abrasive cord (for polishing nut slots)
  
  Advanced Mode + Burning the shit out of yourself and getting really mad about tiny things and also not being 100% sure which humbucker wiring diagram applies to the pickup you're installing because the colors don't match what you found on that one chart online and also you might have destroyed the cap on your tone pot
  
  
• Soldering iron

When I want to cut my flash I just put a little colored masking tape over it. Get good quality though, otherwise you may end up with the glue sticking to the camera. Basically this or this.