Drill Doctor 350X : Drill Doctor Model 350X is perfect for the home workshop and hobbyist. It gives you the features needed to help keep your drill bits sharp. Sharpens standard twist bits from 3/32" to 1/2". Handles High Speed Steel, masonry, carbide, cobalt and TiN coated bits. User replaceable diamond sharpening wheel and 3 year manufacturers warranty. NEW - Easier, front loading chuck for more precise bit alignment. NEW - V-Block jaws eliminate jaw twisting on small bits. NEW - Ergonomic, low profile design means less "tool walking". NEW - Permanent magnet motor produces consistent power, regardless of speed or load. Drill Doctor Model 500X is a shop model with the same great features but can handle up to 3/4" bits with the large chuck attachment. Sharpens 118 and 135 bits and you can create split point bits from standard bits - split point bits significantly reduce walking. Comes with carrying case