Wiseman Threading Tools Bottom Lead Metric HSS Tap Left Hand - M24x1 is a precision internal-threading solution built for accuracy, durability, and reliable performance in metalworking projects. This high-speed steel ground tap is uncoated, offering predictable cutting action and straightforward lubrication compatibility for a wide range of materials.

Designed to cut left-hand threads, this tap is ideal for applications that require reverse-threaded fasteners or components where an anti-rotation fit is part of the design. The M24x1 size and ISO 529 compliant dimensions ensure compatibility with standard metric tapped holes, giving you confidence in threading accuracy and interchangeability with other ISO-compliant tools.

The bottom lead geometry enhances engagement and starting stability, helping you begin the cut cleanly in deeper or harder-to-start holes. This makes it particularly effective for tougher metals and for jobs where consistent thread quality is essential from the first turn to the full depth.

Key features at a glance:

• Material: high-speed steel (HSS) for hardness and wear resistance
• Coating: uncoated, offering predictable heat management and clean chip flow with standard threading lubricants
• Thread type: left-hand, internal thread
• Size: metric M24x1
• Lead: bottom lead design for easier starting and smoother cutting in challenging holes
• Compliance: ISO 529 dimensions for guaranteed compatibility with standard taps

Who it's for: machinists, metalworkers, repair technicians, and dedicated hobbyists who need dependable left-hand threading capability in a compact, single-tool solution. Use it for repairing or creating left-handed threads in steel, cast iron, and non-ferrous metals, as well as certain plastics when lubrication is appropriate.

Practical tips for best results: pair this tap with a suitable tap wrench, work with steady feeds, and use a quality threading lubricant to reduce tool wear. Start with a light touch to establish alignment, then progressively advance to the full depth while maintaining an even, clockwise motion when cutting left-hand threads. Always back off periodically to clear chips and prevent binding, especially in deeper holes.