Multi-Sharp ATT3001 Wetstone Chisel/Plane Blade Sharpener Water cooling is acknowledged by professionals to hone the finest edges. The Wetstone uses re-circulating water to eliminate over-heating of the blade edge and loss of steel temper blueing. Simply fill the built-in reservoir with water, turn on the power drill and a continuous film of water covers the face of the grinding wheel. Sharpens even badly damaged chisels / plane blades quickly, because it uses the relatively high power / torque of an electric drill. The chisel clamp accurately holds the blades at the selected angle for a precision ground edge.