VF-DIN371&376 HSSE Co5% Spiral Point Form B Machine Tap Black Finish

DIN371 & DIN376 HSSE‑Co5% Spiral Point Form‑B Machine Tap complies with DIN371 solid‑shank and DIN376 reduced‑shank European standards. The tap adopts HSSE‑Co5% cobalt‑alloy high‑speed steel substrate with black oxide finish. Black oxidation treatment forms a porous surface layer, which holds cutting fluid better, reduces friction and lowers heat build‑up during tapping operation.

Form‑B spiral‑point flute structure delivers forward chip evacuation, discharging chips toward hole exit and preventing chip clogging inside threaded cavity. Precisely ground thread teeth and sharp cutting edges guarantee accurate thread profile and consistent finish. Excellent red‑hardness makes it suitable for continuous CNC batch‑production tapping tasks, widely used for carbon steel, alloy steel and stainless‑steel workpieces.

✅ Dual DIN Standard Options: DIN371 solid shank and DIN376 reduced shank to satisfy different tool holder requirements✅ HSSE‑Co5% Cobalt Alloy Steel: Outstanding heat‑resistance and toughness for heavy‑duty tapping✅ Black Oxide Surface Finish: Better cutting fluid absorption, lower friction, reduce tool wear✅ Form‑B Spiral‑Point Geometry: Forward chip removal to avoid chip jamming in through holes✅ Precision‑Ground Cutting Teeth: Stable thread dimension and clean threading result✅ Designed for CNC Batch Production: Reliable performance for industrial‑volume tapping jobs

Suitable for CNC machining shops, auto parts manufacturing, machinery and hardware industry. Mainly used for through‑hole tapping on carbon steel, alloy steel and stainless‑steel components.

Please apply proper tapping cutting fluid during machining. This spiral‑point tap is only recommended for through‑hole tapping, not for blind holes. Adjust spindle speed and feed rate reasonably to mitigate overheating and extend tap service life.