Instruct: Classify an Amazon review as either positive or negative.
Query: flat? I don't think so

After 6 hours of work and 20 sheets of wet/dry sandpaper I am still trying to get the sole flat n smooth. The initial grindingis so rough u could use it as a rasp. It may be a fine tool (I havent used it yet) but it takes a lot of hand lapping to get it ready