I bought these to Cut 3/4 inch MDF pieces. And they made clean cuts. However, they did not remove sawdust from the cut line and left dust in the kerf. I kept an eye on the cut with a vacuum and a pickaxe to remove the dust before the next pass to avoid burning and smoking the bat. Up to 1/2 inch of dust came out easily. It was the last quarter inch he entered. I was expecting the "top" part of the drill to come out, but perhaps because MDF produces dust rather than chips, it didn't work as intended. This may work better in hardwood.
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