19X21X23-L، 10 Function، 4 x external hexagon 3/8"", 1/2"", 3/4"" + 1"" on and dismounting of radiator valves and lockshields، 4 x internal thread for hanger bolts M6, M8, M10 + M12 for installation and removal of vanity fixtures، 2 x inner square tube plugs for 3/8"" + 1/2"" & Special tool steel.