The Step Drill attachment allows the XT-3000 owner to quickly and easily sharpen step drills sized 3-21mm. The set up requires no tools, just remove the sharpening port and attach the step drill fixture. The standard attachment is capable of sharpening drills sized 3-12mm and an optional chuck is available to sharpen drills sized 12-21mm. This attachment must be used in conjunction with the X-Y Table.