ALFA TOOLS HTLM81149 M24.0 X 3.0 OR 24MM X 3.0. ALFA TOOLS. HIGH SPEED STEEL HAND TAP PLUG CHAMFER LH 4 FLUTE. LEFT HAND TAP. IT IS NOT INTENDED FOR CUTTING OR STARTING NEW THREADS. MOST HAND TOOLS ARE FULLY COVERED BY MANUFACTURER UNLESS OTHERWISE STATED.