This is a reasonable vise for extended home use. A good solvent clean was required to remove the smelly preservative grease and until I did that it was hard to get past. The jig requires 3/8" mounting screws, but that's overkill, and the mounting holes have to be re-drilled to fit anyway (cast sprue reduces the holes to about 5/16"). I used 1/4" bolts with washers and would recommend that choice. They allow for some adjustment if your holes aren't perfectly spaced, and three of them are enough to secure this vise. A key safety issue: how many similar ones Chinese products., there are dangerous sharp edges at all places when milling the casting, the milling is done in one operation without reworking the edges, and razor-sharp edges may be left.Casting files are simple and permanently solve the problem in just a few minutes.