Included with a 3 year limited warranty and a Drill Doctor 180 Grit DA31320GF Diamond Wheel designed the drill doctor is made for fixing dull or broken bits including split points and other masonry bits the 115-volt Drill Doctor DD750X Drill Bit Sharpener is designed to save the user money and improved bit usage. The drill doctor DD750X can be used to sharpen bits from 3/32-inch to 3/4-inch and can be used on high-speed steel, carbide, Cobalt, TiN-caoted, and masonry bits. The DA31320GF can also be used on Drill Doctor 350X, XP, 500X, and SB models.
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