Instruct: Classify Amazon reviews into positive or negative sentiment
Query: must adjust

provided that you disassemble the vise and tighten the adjustable guides, then this vise is great. I don't know a lot about machining. I am working on a project using 1/16 endmills and need straight lines. This vise delivers. the vise must be adjusted to remove the wobble that it has out of the box. it isn't difficult though. you might as well oil it once it is disassembled.