RUKO HGB DIN 5157 HSS 55° Rp 2 Pipe Thread Tap

Precision-ground HSS pipe thread tap for Rp 2" internal threads with a 55° flank angle, conforming to DIN 5157 and ISO 7-1.

Overview

The RUKO HGB-DIN5157-HSS-55°-Rp-2 is a high-performance pipe thread tap designed for cutting parallel internal pipe threads (Rp) with a nominal size of 2 inches. Manufactured from high-speed steel with a ground profile (HSS-G), it delivers clean, accurate threads in steel, cast iron, and non-ferrous metals.

What stands out

• 55° flank angle per DIN 5157 for standard pipe threads
• Ground flutes and profile ensure smooth cutting and long tool life
• Right-hand cutting direction with 4 straight flutes for efficient chip evacuation
• Bright finish for corrosion resistance and clean operation

Technical details

• Thread standard: DIN 5157 / ISO 7-1
• Thread type: Rp (parallel internal pipe thread)
• Nominal thread size: 2 inch
• Material: HSS-G (high-speed steel, ground)
• Flank angle: 55°
• Thread direction: right-hand
• Overall length (L1): 180 mm
• Thread length (L2): 70 mm
• Shank square size (k): 22 mm
• Core hole diameter: 57.8 mm
• Number of flutes: 4
• Cutting edge type: straight flutes
• Manufacturing process: ground profile
• Surface treatment: bright (untreated)
• Recommended materials: steel, cast iron, non-ferrous metals

Our verdict

A professional-grade tap for precise pipe threading tasks, backed by RUKO's engineering and DIN compliance.