MusicMedic.com: Excellent low-cost, high-quality starter repair kits. "Upgrade kits" available to add to your selection of supplies.
JL Smith: Huge selection of supplies and high quality tools in these kits. Costs run higher, but you get an excellent assortment of synthetic pads, silencers, and waterkey seals should you want them on-hand.
Reference handout and videos from classroom repair clinic done by MN Southeast Tech. Many other useful links about instrument maintenance can be found on this page as well. More information about the Band Instrument Repair program in Red Wing is available on the rest of their website.
I recommend going through your local music store or repair shop first if you can, but you may also order directly from these supplier websites:
JL Smith: Best source for Valentino synthetic products, as well as many other supplies and tools.
MusicMedic.com: Saxophone pads and many other supplies and tools.
Ferree's Tools: General source for pads, supplies, and tools
Rio Grande or Otto Frei: These are actually jewelry supply companies, but are excellent sources for various smooth-jawed pliers
Local Hobby or Hardware Stores: These can be excellent sources for tiny tools like precision screwdrivers or nut drivers. Look for high quality pliers (like Knipex brand) or small plastic/urethane mallets too!
MN Southeast - Red Wing: 1 year repair program available, tons of resources on website
CIOMIT: Online repair classes available. Located in CO
MusicMedic.com: Online repair classes available + tons of excellent YouTube videos and repair articles if you want to get in-depth
JL Smith: Excellent technical definitions, instructional videos, and online resources available
Other Band Instrument Repair Schools: Renton (WA), WIT (IA)
Check out our YouTube channel for more repair videos!