Thread Tap FANAR M16x1.5 DIN 374C Left-Hand (6H) HSSE

FANAR M16x1.5 Thread Tap in left-hand configuration, produced to DIN 374C specification for metric threads. Made from HSSE high-speed steel, this tap is designed for cutting internal M16x1.5 threads with tolerance class 6H. The tool is suitable for both manual and machine tapping where left-hand threads are required, offering consistent geometry and edge preparation for reliable thread forming in metalworking, repair, maintenance and precision assembly.

Advantages

The HSSE material provides a balance of hardness and toughness for prolonged cutting life and resistance to wear at elevated temperatures. Manufactured to DIN 374C and tolerance class 6H, the tap ensures dimensional reliability and interchangeability with standard metric fasteners. Left-hand orientation allows for specific assembly requirements and applications where opposite rotation or reversal-resistant threads are needed. The tool’s geometry is optimized for clean chip evacuation and consistent thread profile.

Suitable for

• Cutting internal M16x1.5 metric threads in metals
• Manual tapping with T-handle or arbor
• Machine tapping in lathes, milling machines or tapping heads
• Repair and maintenance of equipment requiring left-hand threads
• Precision assembly operations with standard 6H tolerance

Key specifications

• Thread form: metric ISO thread M16×1.5
• Thread orientation: left-hand
• Tolerance class: 6H
• Standard: DIN 374C
• Material: HSSE (high-speed steel with enhanced properties)
• Application: internal tapping for metalworking

How to use

Select an appropriate pilot hole size for M16×1.5 threads and secure the workpiece. Use suitable cutting fluid for the material being tapped and apply steady, controlled rotation with a T-handle for manual tapping or set correct spindle speed and feed for machine tapping. For left-hand threads, rotate the tap in the reverse direction compared with standard right-hand taps. Periodically retract the tap to clear chips and reduce torque, and inspect the thread quality during the process. After tapping, deburr the entry and inspect with a gauge or mating fastener to confirm fit within 6H tolerance.

Usage recommendations

Use appropriate cutting fluid and correct pilot hole size; for harder materials consider step tapping or pecking cycles on machines to reduce tool load and improve chip control. Ensure machining parameters and clamping minimize vibration to preserve thread accuracy and tool life.