I recently purchased a refurbished DeWalt716 12" miter saw from cpooutlets.com. It's been a long time since I have used a miter saw, but I'm getting back into some DIY home projects. When I took the saw out of the box I noticed a metal guide that is in contact with the blade (see attached picture). Is this normal? Is this safe to use? I tried contacting DeWalt support, but they have been difficult to reach. Sorry if this is a stupid question! I just want to make sure it's safe! Any help is appreciated.