RUKO HGB-DIN5157-HSS-55°-Rp-1/2 rúrkový závitník

Cutting internal pipe threads by hand can be slow and imprecise, especially in tough materials. The RUKO HGB-DIN5157-HSS-55°-Rp-1/2 tap solves this with a precision-ground HSS-G tool that follows DIN 5157, producing clean 55° British Standard Parallel Pipe threads in 1/2 inch nominal size.

Who is it for

Machinists, plumbers, and maintenance technicians who need reliable internal pipe threads in steel, cast iron, or non-ferrous metals. Suitable for both hand and machine use.

Main features

• Thread standard: Rp (British Standard Parallel Pipe), 55° thread angle
• Nominal thread size: 1/2 inch, 14 TPI
• Manufactured to DIN 5157
• Material: HSS-G (high-speed steel, ground)
• Right-hand cutting direction
• Straight flute type
• Bright (uncoated) surface finish

Specifications

• Overall length: 80 mm
• Shank diameter: 11 mm
• Square drive size: 9 mm
• Thread length: 22 mm
• Recommended core hole diameter: 18.6 mm
• Tool type: single tap

Tips

Use a suitable cutting fluid and ensure the core hole is drilled to the recommended diameter for best thread quality. For machine use, align the tap carefully to avoid breakage.