The Wiseman Threading Tools Bottom Lead Metric HSS Tap Left Hand - M20x1.5 is a precision-ground tapping tool built for reliable left-hand threading in metalworking projects. Crafted from uncoated high-speed steel and finished to ISO 529 dimensions, this tap delivers consistent pitch, true straightness, and durable cutting performance when you need reverse-thread capabilities.

• Material and finish: High-speed steel (HSS), ground to tight tolerances, uncoated for versatile use with a range of cutting fluids and metals.
• Thread specification: Left-hand metric thread, M20x1.5, designed for reverse threading applications and/reverse-fastener removal scenarios.
• Lead and geometry: Bottom lead design enables deeper thread engagement, smoother entry, and efficient chip evacuation for cleaner, more accurate threads.
• Standards and compatibility: ISO 529 dimensions ensure compatibility with standard tooling and fittings; suitable for hand tapping with a tap wrench or for machine-assisted tapping with appropriate tooling.
• Applications: Ideal for creating or repairing left-hand threads in steel, cast alloys, and other common metals where a reverse thread is required or where quick removal of a fastener is anticipated.
• Durability and care: Sharpenable and rebuildable with proper lubrication; store dry to preserve edge life and prevent corrosion.

Whether you're retrofitting equipment, performing maintenance on machinery with reverse-threaded components, or fabricating parts that require a left-hand M20x1.5 connection, this Wiseman tap provides dependable performance, precise thread formation, and a straightforward cutting action that techs and fabricators rely on daily.