Honestly, the Universal Tool Kit is one of the best items they've ever offered in the store, considering the following:
20% crit rate on crafting (you would usually not get this until you hit level 55, and then only with a teal tool set for your character's profession)
Only 150 TP, which is cheaper than just about everything else in the store.
Bound-to-account, so if you're thrifty, you can just buy one and move it from character to character via shared storage.
NEVER switch tools for gathering or crafting again! (I include this last one because it gets really annoying for an Explorere to swtich between prospecting pick and forestry axe every 30 seconds.)
Seriously, if you have a character lower than level 55, you're doing yourself a disservice by not owning one of these. They're wonderful.
"Not all those who wander are lost." -Tolkien
"No matter where you go, there you are." -Confucius