Tap FANAR GWINTOWNIK G 2" NGRM DIN-5157D HSS — G 2 inch thread cutting tap, DIN-5157D, HSS

FANAR GWINTOWNIK G 2" NGRM DIN-5157D HSS is a machine and hand tap designed for cutting internal G (BSPP) 2" threads to the DIN‑5157D profile. Manufactured from high-speed steel (HSS), the tap is intended for forming cylindrical pipe threads in a range of ferrous and non-ferrous metals and alloys. It is suitable for workshop and industrial applications where accurate G 2" pipe connections are required and can be used in both manual tapping and powered tapping machines while preserving thread geometry and surface finish.

Advantages

The HSS material provides good wear resistance and toughness for repeated cutting operations and resists chipping at the cutting edges. Conformance to the DIN‑5157D standard ensures consistent thread profile and interchangeability with other components manufactured to the same standard. The tool is suitable for both machine and hand tapping, offering flexibility in production and repair tasks, and its geometry is optimised for effective chip evacuation and stable cutting performance when used with appropriate cutting fluid.

Suitable for

• Tapping internal G (BSPP) 2" pipe threads in metalwork
• Workshop and industrial pipe fitting and maintenance
• Assembly lines requiring standardized G 2" thread connections
• Repair and retrofit tasks on hydraulic and pneumatic components

Key specifications

• Thread form: G (BSPP) 2" to DIN‑5157D thread profile
• Material: high-speed steel (HSS)
• Application: machine and hand tapping
• Intended use: internal cylindrical pipe threads in metals and alloys
• Cutting geometry: suitable for effective chip evacuation with cutting fluid

How to use

Select the correct drill size and prepare the hole according to DIN‑5157D recommendations before tapping. Secure the workpiece and, for machine tapping, set appropriate spindle speed and feed; for hand tapping use a suitable tap wrench and apply steady, even torque. Use an appropriate cutting fluid to improve surface finish and extend tool life. Reverse the tap periodically to break chips and clear the flutes, and inspect the thread profile after cutting to verify conformity to the required G 2" dimensions.

Usage recommendations

For best results, use a cutting fluid compatible with the workpiece material, maintain correct alignment between tap and bore, and avoid excessive feed or speed. When tapping stainless steel or other tough alloys, reduce speed and increase coolant to minimise wear. Inspect the tap for wear or damage before repetitive use and replace the tool when cutting performance declines.