The OSG Threading Tap BSW A-Spiral Point is a high-performance right-hand tap designed to cut British Standard Whitworth (BSW) threads in through-holes with precision and reliability. Built from powder metal and TiCN-coated for extended life and consistent cutting in demanding tapping operations.

• Threading Standard: BSW (British Standard Whitworth) threads for through holes, DIN2184-1 compatibility.
• A-Spiral Point Geometry: Spiral point design enhances chip evacuation and helps start and finish threads cleanly in through-holes.
• Material: Powder Metal substrate delivers improved wear resistance, heat tolerance, and durability.
• Coating: TiCN coating boosts cutting performance and tool life, especially during high-speed tapping.
• Through-Hole Compatibility: Specifically engineered for through-holes per DIN2184-1, ensuring correct reach and alignment.
• Size: 1/4" nominal diameter with 20 threads per inch (1/4 x 20).
• Direction: Right-hand thread for standard tapping operations.

With the combination of A-Spiral Point geometry, TiCN coating, and powder-metal construction, this tap delivers consistent thread integrity, reduces chip clogging, and extends tool life even under high-speed tapping. It’s ideal for machinists and job shops aiming for precise, clean BSW threads in through-holes across a range of materials. The robust construction and coating translate to fewer tool changes and dependable performance in production environments, helping you achieve repeatable, high-quality results.