M4*1D M4*1.5D M4*2D M4*2.5D M4*3D M5*1D M5*1.5D M5*2D
M5*2.5D M5*3D M6*1D M6*1.5D M6*2D M6*2.5D M6*3D M8*1D
M8*1.5D M8*2D M8*2.5D M8*3D M10*1D M10*1.5D M10*2D M10*2.5D
M10*3D M12*1D M12*1.5D M12*2.5D M12*3D