Wiseman M10x0.75 Left-Hand Bottoming Tap – HSS, Uncoated, ISO 529

Designed for precise internal threads with a left-hand orientation, this Wiseman Threading Tool is a reliable addition to any machinist’s toolkit. The Bottom Lead geometry ensures full-thread engagement to the bottom of the hole, delivering clean, consistent threads every time. Built from high-speed steel and ground for a smooth, accurate cut, it’s ready for general-purpose use across a range of materials.

• Thread type & size: metric M10 x 0.75, left-hand thread
• Lead type: bottoming lead for maximum thread depth and engagement
• Material & finish: high-speed steel (HSS), uncoated for versatile performance
• Standards: ISO 529 dimensions for compatibility with standard taps and thread standards
• Geometry: ground tap for improved symmetry, smoother cutting action, and better chip control

Ideal for applications where a left-handed internal thread is required to resist loosening from clockwise motion—think specialized fasteners in machinery, automotive components, or equipment that relies on reverse-threaded assemblies. The M10x0.75 size is a common choice for small to mid-range fasteners, and the bottoming design helps you achieve the full thread depth in one pass when properly drilled.

Practical usage tips:

• Always drill the correct pilot hole for M10 x 0.75 before tapping to ensure optimal thread quality.
• Use a suitable cutting fluid or light oil to reduce friction and heat buildup during tapping.
• Turn steadily in the designed direction for left-hand threads, maintaining proper alignment to avoid cross-threading.
• Back out intermittently to clear chips and prevent binding, continuing until the bottoming tap reaches the full thread depth.

Why choose Wiseman? This tap represents a balance of precision, durability, and practical design for everyday threading tasks. Its uncoated HSS construction and ISO-compliant dimensions make it a dependable choice for professionals and serious hobbyists alike, delivering dependable performance when you need a reliable left-hand internal thread at M10x0.75.