Thread Tap Set FANAR M3–M12 DIN 371C / DIN 376C HSS-E Oxide Z2-085015-0000

FANAR thread tap set M3–M12 DIN 371C / DIN 376C HSS‑E Oxide Z2-085015-0000 provides a coordinated collection of metric taps for cutting internal threads from M3 to M12. The set includes taps produced to DIN 371C and DIN 376C geometries, made from high-speed steel with cobalt alloy (HSS‑E) and an oxide surface finish. It is intended for machining internal threads in a range of metals including carbon steel and stainless steel and contains both through-hole and blind-hole taps according to the respective DIN types.

Advantages

The HSS‑E material with added cobalt increases hardness and heat resistance compared with conventional high-speed steels, which helps maintain cutting performance when machining tougher alloys. The oxide finish reduces galling and improves chip evacuation in many cutting conditions. Taps manufactured to DIN 371C and DIN 376C ensure dimensional and geometrical conformity for consistent thread quality. The set covers a broad metric range (M3–M12), reducing the need to source individual taps for common internal thread sizes.

Suitable for

• Cutting internal metric threads (M3 to M12) in machine shop operations
• Maintenance and repair tasks where multiple thread sizes are required
• Production environments machining carbon steel, alloy steel and many grades of stainless steel
• Applications requiring both through-hole and blind-hole tapping according to DIN specifications

Key specifications

• Thread size range: M3 to M12
• Standards: DIN 371C (taper and plug taps) and DIN 376C (bottoming taps)
• Material: high-speed steel with cobalt alloy (HSS‑E)
• Surface treatment: oxide finish
• Intended hole types: through-hole and blind-hole depending on tap type
• Suitable workpiece materials: carbon steel, alloy steels, stainless steel and similar metals

How to use

Select the tap matching the required thread size and the appropriate DIN type for through or blind holes. Secure the workpiece firmly and drill the correct size pilot hole before tapping. Use a suitable tap wrench or machine tapping attachment and apply cutting fluid appropriate for the workpiece material to reduce friction and improve chip evacuation. For hand tapping, apply steady, even pressure and back off periodically to break chips. For machine tapping, follow the machine manufacturer’s feed and speed recommendations for HSS‑E tools and monitor for signs of wear or clogging.

Usage recommendations

Use cutting fluid when machining stainless steel or tougher alloys, avoid excessive speeds to prolong tool life, and replace taps that show dullness, chipping, or thread quality deterioration to maintain consistent thread accuracy.