RUKO HGB-DIN352-HSS-M52x5.0mm Hand Tap

Threading large M52 holes by hand demands a tap that stays sharp, cuts accurately, and resists wear. The RUKO HGB-DIN352-HSS-M52x5.0mm hand tap solves this with ground high-speed steel and a precision metric coarse thread profile.

Who is it for

Machinists, maintenance technicians, and metalworkers who need reliable hand threading in unalloyed and alloyed steels up to 800 N/mm². Ideal for repair jobs, custom fabrication, and production environments where a single tap must deliver consistent results.

Main features

• Metric coarse thread M52 with 5.0 mm pitch, conforming to DIN 352.
• Ground HSS-G high-speed steel for long tool life and clean cuts.
• Right-hand cutting direction with 5 flutes for efficient chip evacuation.
• Form B lead (3.5–5 threads) for gradual, controlled thread entry.
• Bright surface treatment for corrosion resistance and reduced friction.

Specifications

• Thread size: M52
• Pitch: 5.0 mm
• Standard: DIN 352
• Material: HSS-G (ground high-speed steel)
• Tolerance class: ISO 2 (6H)
• Number of flutes: 5
• Overall length: 220 mm
• Thread length: 70 mm
• Shank diameter: 38.0 mm
• Square drive size: 29.0 mm
• Core hole diameter: 47.0 mm
• Cutting direction: Right-hand
• Lead type: Form B
• Recommended material: Unalloyed and alloyed steels up to 800 N/mm²

Tips

Use a suitable tap wrench and apply cutting oil to improve finish and tool life. Drill the core hole to 47.0 mm before tapping. For deep holes, clear chips frequently to prevent binding.