These ¼” square HSS pre-ground lathe tool bits are available in the most commonly used configurations: Right Hand, Left Hand, 45 Degree, Round Nose, Boring Bar, and Cutoff. The Right Hand and Left Hand are the same Tool bit just rotated 90 degrees. These bits are also available as a set of 6 and we also offer the unground blanks so you can grind your own custom tools.