Somta Somta Series 551 - HSS Short Hand Tap 1" UNF Second (Intermediate)
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The SOMTA 5512542 – 1” HSS Second (Intermediate) Short Hand Tap is a robust, precision-engineered tool designed for general-purpose hand tapping in heavy-duty applications. Made from high-speed steel (HSS) and built to ISO 529 standards, this tap forms Unified Fine (UNF) threads with a 60o flank angle and ISO 2 / 2B tolerance. Its straight flute design provides effective chip removal, while the right-hand cutting direction ensures smooth manual tapping. Positioned as the second tap in a 3-piece set, it is ideal for refining threads after the taper stage. This listing is for one individual second (intermediate) tap only.
Key Features & Benefits
UNF Thread Form – Unified Fine Thread for secure, precise threading in mechanical assemblies.
Second Tap (Intermediate) – Bridges the gap between taper and bottoming taps for optimal thread development.
High-Speed Steel (HSS) – Delivers superior durability, heat resistance, and wear performance.
Straight Flute Design – Ensures effective chip evacuation during hand tapping.
ISO 2 / 2B Tolerance – Suitable for general-purpose internal thread applications and fastener compatibility.
Right-Hand Cutting – Compatible with standard clockwise tap wrenches.
Through & Blind Hole Compatible – Performs well across a range of threading conditions.
Manual Use – Specifically engineered for hand tapping in professional settings.
Technical Specifications
Part No: 5512542
Tap Size: 1” UNF
Threads Per Inch (TPI): 12
Overall Length (l1): 120 mm
Thread Length (l2): 35 mm
Shank Diameter (d1): 18 mm
Square Size (a): 14 mm
Number of Flutes: 4
Thread Angle: 60o, UNF Form
Material: High-Speed Steel (HSS)
Flute Type: Straight Flute
Standard: ISO 529
Tolerance: ISO 2 / 2B
Cutting Direction: Right-Hand
Application: General-Purpose Hand Tapping
Why Choose the SOMTA 5512542 Second Tap?
Efficient Mid-Stage Tapping – Supports clean, accurate thread progression in larger diameter workpieces.
Heavy-Duty HSS Build – Withstands demanding hand tapping in industrial and maintenance applications.
Versatile Threading Tool – Effective for both blind-hole and through-hole use.
Specifications
Warranty & Returns
This product is sold by a third-party seller and they are responsible for their product, the content of their listing and any exchanges or returns of their product.
All products sold by third-parties are subject to guarantees that cannot be excluded under the Consumer Guarantees Act.
