The Drill DoctorΖ DD350X is a value-priced and easy-to-use drill bit sharpener, ideal for the shop that uses the most common bit styles and works mainly in wood and light metals.Bit Sizes (SAE) 3/32 to 1/2 Angle Sharpening (deg.) 118 Carbide-Tip Bits Yes High Speed Steel Bits Yes Masonry Bits Yes Titanium-coated Bits Yes Additional Product Specs * Easy front-loading chuck * Simplified alignment and sharpening procedures * Replaceable diamond sharpening wheel * Model DD350X