RUKO MGB-DIN5156-HSSCo-55°-Rp-1/4 HSS-Co Pipe Tap, BSP Parallel Thread, 1/4 inch, DIN 5156

Cutting internal British Standard Pipe Parallel threads in tough materials demands a tap that resists heat and wear. The RUKO MGB-DIN5156-HSSCo-55°-Rp-1/4 is a universal machine and hand tap made from high-speed steel with cobalt (HSS-Co), engineered for reliable threading in steel, cast iron, stainless steel up to 800 N/mm², and non-ferrous metals.

Who is it for

Machinists, maintenance technicians, and metalworkers who need to produce accurate Rp 1/4 inch parallel pipe threads in through or blind holes. Suitable for both hand tapping and machine use.

Main features

• Material: High-Speed Steel with Cobalt (HSS-Co) for enhanced heat resistance and durability.
• Thread standard: British Standard Pipe Parallel (Rp) with 55° thread angle.
• Nominal size: 1/4 inch, 19 threads per inch (TPI).
• Straight flute design for efficient chip evacuation in through and blind holes.
• Ground thread for accurate thread form and smooth cutting.
• Bright (uncoated) surface finish.
• Right-hand cutting direction.

Specifications

• Overall length: 65 mm
• Thread length: 22 mm
• Shank diameter: 7 mm
• Square drive size: 5.5 mm
• Recommended core hole diameter: 11.5 mm
• Series/Standard: DIN 5156

Tips

Use a suitable cutting fluid when tapping steel or stainless steel to prolong tool life. Ensure the core hole is drilled to the recommended diameter for optimal thread engagement.