The Wiseman Threading Tools Bottom Lead Metric HSS Tap in M48x3 is built for serious metalworking tasks where precision, depth, and durability matter. Designed for reliable, continuous threading in a range of metals, this right-hand, bottoming tap delivers consistent results—from pilot hole to final thread engagement.

• Material and finish: High-speed steel (HSS) ground for clean flute edges and accurate thread forms. Uncoated surfaces support steady cutting action and straightforward sharpening, especially with regular maintenance.
• Size and standard: Metric M48x3 with ISO 529 dimensions ensures predictable thread geometry and compatibility with standard fasteners and nuts. The right-hand thread aligns with common assembly practices for everyday machining tasks.
• Bottom lead (bottoming) geometry: Full thread to the bottom of the hole enables deep, precise threads in blind or through-hole applications. Ideal when you need maximum thread engagement without flipping to another tapping operation.
• Versatile, general-purpose use: Suitable for general threading on steel, cast iron, and non-ferrous materials such as aluminum when paired with proper cutting oil. Perfect for repairs, prototype work, or production runs where robust, repeatable threads are essential.
• Practical tips for best results: Use a quality cutting oil or lubricant to reduce heat and extend flute life. Align the tap carefully with the hole, apply steady, moderate pressure, and back off intermittently to break chips and prevent binding. Keep the tool cool to maintain dimensional accuracy and prolong life.
• Why choose Wiseman: Wiseman Threading Tools are engineered for dependable performance in workshop environments, offering precise dimensions, durable geometry, and a design that prioritizes control and consistency across multiple threading tasks.

With the Wiseman M48x3 bottoming HSS tap in your toolkit, you can tackle deep, clean threads with confidence, knowing the tool delivers dependable results you can count on for every project.