- Made of solid steel - Reducing ring for adapting the bore of the cutting discs to the axis of the deviceDimensions: - 30 x 22 x 1.2 mm - 30 x 22 x 1,4 mm - 30 x 22 x 2 mmUse of the tool: - For adapting the holes of the diamond cutting discs to the tool axis - For adapting the bore of wood cutting discs to the tool axis