The OSG Threading Tap BSW A-Spiral Flute is a high-performance tool designed to cut British Standard Whitworth threads in blind holes with precision and reliability. Built for machinists and shop floors that demand consistent results in constrained spaces, this right-hand tap delivers clean, accurate threads every time.

• Thread type and standard: British Standard Whitworth (BSW) threading per DIN2184-1 specifications for correct pitch and geometry
• Size: 1/2 x 12 (1/2" major diameter with 12 threads per inch)
• Flute design: A-Spiral flute enhances chip evacuation in blind holes, reducing clogging and improving stability
• Material: Powder metal construction for durability, wear resistance, and long tool life
• Coating: TiCN (Titanium Carbonitride) coating lowers friction and increases surface hardness for tougher materials and higher-speed cutting
• Direction: Right-hand threading for standard internal threading operations
• Application: Specifically suited for blind-hole tapping in steel and alloy workpieces where a through-hole is not available
• DIN compatibility: Designed to conform to DIN2184-1 for reliable thread formation and interchangeability

This TiCN-coated, powder-metal tap combines cutting efficiency with extended life in demanding environments. The spiral flute design optimizes chip removal in non-through holes, helping prevent built-up chatter and improving thread quality. The TiCN coating reduces wear and heat generation, enabling steadier performance and fewer tool changes during production runs. Ideal for: precision assemblies, automotive components, and general engineering projects where robust BSW threads are required in blind depths. For best results, use proper lubrication and steady, controlled feeds to maximize tool life and thread accuracy.