G 3/8 BSPP machine-tap DIN 5156 C R45 HSSE-PM Mastertap

Featuring HSSE-PM powder metallurgy high-speed steel with cobalt, this G 3/8 machine tap delivers exceptional hardness and wear resistance for demanding threading operations. The 45° right-hand spiral flute efficiently evacuates chips, making it suitable for both blind and through-hole applications. The parallel pipe thread profile conforms to DIN 5156 tolerance class C, ensuring reliable, accurate threads in steel, stainless steel, cast iron, and non-ferrous metals.

Overview

Part of the Mastertap series, this tap is designed for general-purpose high-performance threading. The uncoated surface provides consistent cutting performance and easy regrinding. The tap features a 10.0 mm shank diameter and 8.0 mm square drive for secure tool holding. With 4 flutes and a right-hand cutting direction, it offers efficient chip removal and stable operation.

What stands out

• HSSE-PM material with cobalt for superior hardness and wear resistance
• 45° right-hand spiral flute for efficient chip removal
• DIN 5156 tolerance class C for standard fit parallel pipe threads
• Versatile across steel, stainless steel, cast iron, and non-ferrous metals
• Uncoated for easy regrinding and extended tool life

Technical details

• Thread type: G (BSPP) parallel pipe thread
• Nominal size: 3/8 inch
• Thread pitch: 1.337 mm (19 TPI)
• Overall length: 90 mm
• Thread length: 22 mm
• Shank diameter: 10.0 mm
• Square size: 8.0 mm
• Number of flutes: 4
• Cutting direction: right-hand
• Standard: DIN 5156
• Product series: Mastertap

Our verdict

A high-performance machine tap that combines advanced powder metallurgy steel with efficient spiral flute geometry, delivering reliable threading in a wide range of materials.