DMT Deluxe Kit Diamond Whetstone 4 Stones DM. This Knife blade Sharpening System from the expert product specialists at DMT includes extra coarse coarse fine and extra fine grit sets and comes with a fabric pouch. For an amazing way to make sure your knife is is the sharpest around choose the DMT Deluxe Kit Diamond Whetstone 4 Stones. Package Contents: DMT Deluxe Kit Diamond Whetstone 4 Stones DMT DMW4K: Deluxe Kit Diamond Whetstone 4 Stones