Description
HSS Bottom Tap BSP-G 1/4″ x 19 – Somta Series 571
The SOMTA 5710643 – 1/4″ x 19 BSP-G HSS Bottom Tap is designed for producing full-depth, high-precision parallel pipe threads in blind holes. Ideal for sealing or pressure applications, this bottoming tap features a short chamfer that enables thread cutting close to the hole base. Crafted from premium High-Speed Steel (HSS), it provides excellent wear resistance and a long service life, making it suitable for tapping in steel, cast iron, brass, and non-ferrous alloys.
Key Features Benefits
- Bottoming Chamfer (1–2 Threads) – Enables full-depth thread cutting in blind-hole applications.
- BSP-G Thread Form – British Standard Pipe Parallel thread, 1/4″ diameter with 19 TPI.
- Straight Flute Geometry – Promotes clean chip evacuation and consistent thread formation.
- High-Speed Steel (HSS) – Offers superior cutting edge retention and toughness under load.
- Bright Finish – Enhances surface finish and reduces friction during cutting.
- Hand or Machine Compatible – Suitable for manual tap wrenches, tapping arms, or CNC machines.
Technical Specifications
- Part No: 5710643
- Thread Size: 1/4″ x 19 TPI
- Thread Standard: BSP-G (British Standard Pipe – Parallel)
- Tap Type: Bottoming (short chamfer for blind holes)
- Flute Style: Straight flute
- Cutting Direction: Right-hand
- Material Finish: High-Speed Steel (HSS), Bright
- Standard: ISO 228 / BS 2779
Why Choose the SOMTA 5710643 BSP-G Bottom Tap?
- Optimized for Blind Holes – Short chamfer allows threading near the bottom of the hole.
- Reliable BSP Threading – Ensures leak-tight and dimensionally accurate pipe threads.
- Durable HSS Construction – Delivers consistent results even under repetitive use.
- Versatile Use – Suitable for general engineering, plumbing, and hydraulic system fabrication.
The SOMTA 5710643 is your go-to tool for producing precise, full-depth BSP parallel threads in blind-hole pipe fitting applications. Built to last, it's trusted in workshops and production environments alike.
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