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Screw Points are found strictly on wood cutting tools. These types of points are sometimes called Self Feeding points. Screw Points are designed to assist and control the rate of feed for that tool. In other words, the screw point controls how fast the tool cuts, and all but eliminates the need to push the tool. It is a must when drilling large holes with hand held equipment. The disadvantage of tools with screw points is, unless the screw point is replaceable, the tool will only last until the screw wears out. That may not take long in hardwoods.
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