The top model Mora Nova is now even better and has been renamed Super Nova! A new, simple and reliable folding mechanism for the crank makes it easy to fold, unfold and, above all, the crank is completely quiet and stays in position during use. The black color prevents ice from building up on the spiral. The color absorbs every little ray of sunlight and prevents ice from settling as easily as with other colors. Dimensionally stable drill bit with replaceable blades. Stable movement throughout the ice. Safety: The drill bit can be changed without removing the blade guard. The spiral can be used with an electric drill together with a 22mm adapter, or directly on a StrikeMaster Lithium 24v/40v.