ALFA TOOLS HTLM81137 M16.0 X 2.0 OR 16MM X 2.0. ALFA TOOLS. LEFT HAND LH TAP. HIGH SPEED STEEL HAND TAP PLUG CHAMFER 4 FLUTE. IT IS NOT INTENDED FOR CUTTING OR STARTING NEW THREADS. MOST HAND TOOLS ARE FULLY COVERED BY MANUFACTURER UNLESS OTHERWISE STATED.