I made one with 2 pieces of 1/4" metal and two bolts in the bottom with washers as spacers and 4 bolts in the top. It wasn't that quick to tighten and move the chain. If your vise will swivel 180° you can file 7 teeth at a time in a 1' section if I remember right. I'm going to make another one a little different sometime. I used this one to make a case splitter for a 390 project I did back in the summer. A bar with a pair of vise grips holding the chain tight on the end of the bar slot works pretty good.