Tap (gwintownik) FANAR M18x1.5 DIN-374B (6H) HSS-E 800

FANAR M18x1.5 tap DIN‑374B (6H) in HSS‑E 800 is a tool for cutting internal metric threads M18×1.5 to tolerance class 6H. Manufactured to DIN‑374B form B geometry, the tap is made from high‑speed steel with cobalt (HSS‑E), which increases red hardness and wear resistance compared with conventional HSS. The tool is intended for manual or machine tapping operations in industrial and workshop environments where robust performance in alloyed and harder steels is required.

Advantages

The HSS‑E 800 material provides improved heat resistance and durability when machining tougher materials. DIN‑374B form B geometry ensures thread profile and tolerance conformity to the 6H specification for metric threads. The tap is suitable for both hand tapping and machine use, offering consistent thread quality and extended tool life under normal cutting conditions. Precision manufacturing yields uniform flank and thread dimensions for reliable assembly and repair tasks.

Suitable for

• Cutting internal metric threads M18×1.5 in steel and alloyed materials
• Machine tapping operations including drilling machines and tapping heads
• Manual tapping in controlled workshop or maintenance settings
• Repair and assembly of mechanical parts requiring tolerance class 6H

Key specifications

• Thread size: M18×1.5
• Thread tolerance: 6H (metric)
• Form: DIN‑374B (form B)
• Material: high‑speed steel with cobalt (HSS‑E 800)
• Intended use: internal thread cutting (tap)
• Suitable for hand and machine tapping

How to use

Begin by selecting a correct drill size for the M18×1.5 tap drill hole and secure the workpiece. For machine tapping, align the tap with the hole axis and use appropriate spindle speed and feed for HSS‑E material and the workpiece metal. For manual tapping, use a suitable tap wrench, apply steady axial pressure and rotate the tap evenly, reversing periodically to break chips. Use an appropriate cutting fluid or lubricant for the work material to reduce wear and improve surface finish. After threading, clean the thread to remove chips and cutting fluid residues.

Usage recommendations

Use recommended drill sizes and cutting parameters for M18×1.5 threads and choose cutting fluid suitable for alloyed steels. Avoid excessive feed or speed that can overload the tap; replace the tool if wear or chipping is observed to maintain thread accuracy. Store the tap in a dry place and protect the cutting edges from impacts to preserve tool life.