This Graverhone system from GRS is perfect for sharpening gravers efficiently at your workspace.  The system comes with three diamond wheels, in 260, 600 and 1200 grit, to be used when sharpening or for creating customized tool shapes.  The speed dial on the front panel runs from 400 to 900 RPM to cover any job you do---the lower speeds are for basic sharpening, while the higher speeds can be used to customize your tools.  The system has dual direction, which is perfect for left and right-handed users.  The quick lock feature allows you to change the diamond wheels in seconds.  Order today at Stuller.com/tools.