M.1905
Diamond point 1,0mm - ball
M.1910
Diamond point 1,4mm - ball
M.1915
Diamond point 1,8mm - ball
M.1925
Diamond point 1,5mm - cylindrical
M.1935
Diamond point 3,2mm - cylindrical
M.1950
Diamond point 1,6mm - flame
M.1970
Diamond point 2,8mm - point
M.1980
Diamond point 5,0mm - disc