I bought this to sharpen a box of bits. He did exactly what I wanted. The beats are all sharp now. My bits have been used for about 30 years and are usually replaced with new bits that cost more money. This one time purchase should have been made sooner if I knew it would work so well. shaky, but if you go online to watch youtube videos I think you will get very clear how to use it. Once you sharpen a little or two it becomes very easy. I think the value is definitely worth it. FYI, I have a lot of building experience and little drilling experience :-)
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