Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: A necessary addition to any tool collection

You wont have any desire for an engraver until you loose something. When you eventually do, the Dremel lives up to its rotary reputation. This is much easier to use than other engravers which make it difficult to make out your own name after you've engraved it. So for any hope of you're lost item being recovered, use this.