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The HERTEL K020171AS25 is a spiral point tap designed for cutting M6x1.00 metric coarse internal threads in through-hole applications. It features a 2-flute, plug chamfer geometry that pushes chips forward ahead of the cutting edge, making it well suited for tapping in CNC machining centers, drill presses, and manual tapping setups. The tap is manufactured from high-speed steel (HSS) with a titanium nitride (TiN) coating, which increases surface hardness and reduces friction at the cutting edge. Thread length is 1 inch, shank diameter is 0.255 inches, and the thread limit is D3. It is intended for use by machinists, tool and die makers, and production shop technicians working with metric fastener specifications.
This tap is used in production and job-shop environments where M6x1.00 metric coarse threads are required in through-holes. The plug chamfer provides a gradual lead-in over several threads, making it a standard choice for both hand tapping and machine tapping operations. The right-hand thread direction is the conventional configuration for standard M6 fastener applications. The TiN coating extends tool life in ferrous and non-ferrous materials compared to uncoated HSS taps. This tap does not include coolant-through capability and is not an oversize tap.
Designed for use in standard tapping chucks and tap holders that accept a 0.255-inch shank diameter. Suitable for through-hole tapping operations requiring M6x1.00 metric coarse threads.
This tap should be installed in a properly sized tap chuck or collet rated for the shank diameter before use. Always ensure the workpiece is securely fixtured and the spindle or tapping arm is aligned perpendicular to the hole. Apply appropriate cutting fluid for the workpiece material to extend tool life. Inspect the tap for wear or chipping before each use and replace if the cutting edges are damaged.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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