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HSS Bottom Tap Metric M12 x 1.25 (Fine Pitch) – Somta Series 511
The SOMTA 5111203 – M12 x 1.25 HSS Bottom Tap is a precision tool designed for cutting fine-pitch internal threads in blind holes. Manufactured from high-speed steel (HSS), this bottoming tap features a short chamfer lead ideal for threading close to the hole base. The fine pitch (1.25mm) makes it perfect for applications requiring greater thread engagement and finer adjustment, such as in automotive, aerospace, and precision engineering components.
Key Features Benefits
- Bottoming Chamfer (1–2 Threads) – Enables full thread depth in blind holes.
- Metric Fine Thread – M12 x 1.25 pitch offers higher strength and thread density than coarse threads.
- Straight Flute Design – Ensures steady cutting and efficient chip evacuation.
- High-Speed Steel (HSS) – Provides excellent wear resistance and tool longevity.
- Bright Finish – Reduces cutting friction and improves thread surface quality.
- Manual or Machine Use – Suitable for use in hand tapping or machine-based operations.
Technical Specifications
- Part No: 5111203
- Thread Size: M12 x 1.25
- Thread Standard: ISO Metric Fine
- Tap Type: Bottoming (short chamfer)
- Flute Style: Straight flute
- Cutting Direction: Right-hand
- Material Finish: High-Speed Steel (HSS), Bright
- Standard: ISO 529
Why Choose the SOMTA 5111203 Metric Fine Bottom Tap?
- Precision Fine Threading – Ideal for mechanical assemblies where finer pitch is critical.
- Effective for Blind Holes – Bottoming lead ensures full thread formation close to the base.
- Reliable HSS Build – Withstands high loads and tough materials with consistent performance.
- Professional-Grade Tool – Trusted in automotive, engineering, and maintenance environments.
The SOMTA 5111203 bottom tap is engineered for accurate, fine-pitch threading in M12 applications. Built from high-speed steel with a short chamfer, it’s ideal for achieving full-depth threads in blind hole situations.
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