If it's a deeper scratch, sandpaper. Start with a lower grit (200 to 400) to get the scratch out, then go down to higher grit (2000 to 3000) to smooth the hilt surface back out. Then some of that polish Isola815 mentioned.
Also, please read and acknowledge the forum rules. It's something we all had to do when we were new. Here's a link to the thread:
http://www.saberforum.com/index.php?topic=117.0