G 1/8 DIN-5156C R40 HSSE TiN Machine Tap for BSPP Pipe Threads

With a 28 TPI pitch and TiN-coated HSSE construction, this G 1/8 machine tap cuts precise BSPP internal threads in tough steels and stainless alloys.

Overview

Engineered to DIN 5156C, this right-hand machine tap produces G 1/8 parallel pipe threads with a 2–3 thread lead chamfer. The cobalt-enriched HSSE substrate withstands high cutting temperatures, while the titanium nitride coating reduces friction and extends tool life. Three flutes ensure efficient chip evacuation in through and blind holes.

What stands out

• TiN coating lowers torque and resists built-up edge.
• HSSE cobalt steel handles abrasive and work-hardening materials.
• Form C chamfer eases thread starting and alignment.
• Compact 63 mm overall length fits standard tap holders.

Technical details

• Thread standard: G (BSPP)
• Nominal size: 1/8 inch
• Pitch: 28 TPI
• Tool standard: DIN 5156C
• Material: HSSE (high-speed steel with cobalt)
• Coating: TiN (titanium nitride)
• Tap type: Machine tap
• Chamfer form: C (2–3 threads lead)
• Cutting direction: Right-hand
• Overall length: 63 mm
• Thread length: 20 mm
• Shank diameter: 7.0 mm
• Square drive: 5.5 mm
• Flutes: 3
• Suitable for: Steel, stainless steel, cast iron, non-ferrous metals

Our verdict

A dependable machine tap for BSPP pipe threading in demanding production environments, combining cobalt toughness with a low-friction TiN finish.