ALFA TOOLS HTLM81131 M12.0 X 1.75 OR 12MM X 1.75. HIGH SPEED STEEL HAND TAP PLUG CHAMFER 4 FLUTE. ALFA TOOLS. LEFT HAND LH TAP. IT IS NOT INTENDED FOR CUTTING OR STARTING NEW THREADS. MOST HAND TOOLS ARE FULLY COVERED BY MANUFACTURER UNLESS OTHERWISE STATED.