Negative Positive
Title: very difficult to get a good sharpening.
Review: This tool is very difficult to set up to make it work. I've ruined bits with it by trying to sharpen them, and instead get wrong angles on them, and end up grinding way down. The chucks are somewhat flimsy, alignment is difficult, and results are inconsistant.It is one of the few tools I've ever bought that I would never use again.It would be better to simply buy new drill bits- I do now.
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