Nitto Stem Tool Spreader

If you've ever installed drop handlebars on a traditional quill stem, you already know why you need this tool. No shop should be without one!

Made by Nitto, who happen to also make the world's greatest quill stems, but you can use it with other brands' stems. Yes, you can also use a 6mm big ol' Allen key, but this is way more ergonomic and won't scratch anything up. If you install a few bars a year it's worth it.