RUKO HGB-DIN352-HSS-60°-M4x0.70mm Hand Tap

Cutting precise M4 threads by hand in unalloyed and low-alloy steels, cast iron, and non-ferrous metals requires a tool that stays sharp and maintains exact geometry. The RUKO HGB-DIN352-HSS-60°-M4x0.70mm hand tap solves this with a ground thread and high-speed steel construction, delivering clean, accurate threads in through holes and blind holes.

Who is it for

Machinists, metalworkers, and maintenance technicians who need a reliable single tap for manual thread cutting in materials up to 800 N/mm² tensile strength. Suitable for workshops, repair jobs, and small-batch production.

Main features

• High-speed steel (HSS) body for durability and wear resistance.
• Ground thread for precise thread form and smooth cutting.
• Metric coarse thread M4 with 0.70 mm pitch and 60° thread angle.
• Right-hand cutting direction, tolerance class ISO 2 (6H).
• 3 flutes for efficient chip evacuation.
• Bright (uncoated) surface finish.

Specifications

• Product type: Hand tap
• Standard: DIN 352
• Nominal thread diameter: M4 (4 mm)
• Thread pitch: 0.70 mm
• Overall length: 45 mm
• Thread length: 13 mm
• Shank diameter: 3.15 mm
• Square drive size: 2.5 mm
• Number of flutes: 3
• Application material: Unalloyed and low-alloy steels, cast iron, non-ferrous metals
• Recommended use: Through holes and blind holes
• Tool series: Single tap
• Manufacturing process: Ground thread
• Max. tensile strength of material: Up to 800 N/mm²

Tips

Use a suitable tap wrench and cutting fluid for best results. Ensure the hole is drilled to the correct size for M4 coarse thread. Apply steady pressure and reverse periodically to break chips.