Hand Tap Set Bohrcraft 4102, HSS-G, BSP (G), DIN 5157, 2 pcs

Hand Tap Set Bohrcraft 4102, HSS-G, BSP (G), DIN 5157, 2 pcs is engineered for cutting BSP (British Standard Pipe) threads in accordance with DIN ISO 228/1. This set is constructed from high-speed steel ground (HSS-G) and meets the requirements of DIN 5157, ensuring compatibility with a wide range of general machinable materials up to 800 N/mm² (22.5 HRC) tensile strength. The set contains two taps: No. 1 rougher with 5–6 threads lead and No. 2 finisher with 2–3 threads lead, supporting both through and blind hole applications.

Each tap in the Bohrcraft 4102 set is designed for efficient and accurate thread cutting in workshop and industrial environments. The rougher tap initiates the thread, while the finisher completes it, reducing the risk of error and supporting stable, repeatable results. The taps are suitable for creating Whitworth pipe threads, a standard in piping and mechanical assembly.

This hand tap set is widely used in mechanical engineering, maintenance, pipe installation, and industrial equipment manufacturing. Its compatibility with both through and blind holes makes it a practical choice for a variety of threading tasks where BSP threads are required.

Hand Tap Set Bohrcraft 4102, HSS-G, BSP (G), DIN 5157, 2 pcs

Technical Features and Specifications

The Bohrcraft 4102 Hand Tap Set is designed for precise BSP thread cutting in machinable materials. The two-piece set covers both roughing and finishing operations, ensuring smooth workflow and consistent thread quality. Each tap is marked for its specific function and lead thread count.

• Material: HSS-G (High-Speed Steel, ground)
• Standard: DIN 5157
• Thread type: BSP (Whitworth), DIN ISO 228/1
• Suitable for materials up to 800 N/mm² (22.5 HRC)
• Set includes: No. 1 rougher (5–6 threads lead), No. 2 finisher (2–3 threads lead)
• For through and blind holes

The technical configuration of this set allows for reliable thread formation in both workshop and field conditions. The HSS-G construction provides wear resistance and dimensional stability during use, supporting consistent thread profiles across multiple operations.

Common Applications

Hand Tap Set Bohrcraft 4102 is commonly used in mechanical workshops, pipe system installations, equipment maintenance, and industrial manufacturing. It is suitable for creating BSP threads in fittings, valves, pipe connectors, and other components requiring Whitworth pipe threads. The set is applicable for both new installations and repair work, accommodating both through and blind hole threading tasks.

Faithful Catalog Technical Content

For general use in good machinable materials up to 800 N/mm² (22.5 HRC) tensile strength. Designed for cutting Whitworth pipe threads according to DIN ISO 228/1 for both through and blind holes. No. 1 tap is a rougher with 5–6 threads lead; No. 2 tap is a finisher with 2–3 threads lead. Available sizes include G 1/8'' x 28, G 1/4'' x 19, G 3/8'' x 19, G 1/2'' x 14, G 3/4'' x 14, G 1'' x 11, G 1 1/4'' x 11, G 1 1/2'' x 11, and G 2'' x 11. Full details on dimensions and codes are provided in the attached catalog.