The OSG BSF Spiral Point Threading Tap is built for professionals who demand precise British Standard Fine threads in through-hole applications. Crafted from high-speed steel with cobalt (HSS-E) and finished with a Steam Oxide coating, it delivers durability, heat resistance, and reliable performance in demanding tapping tasks.

• Threading Type: BSF Spiral Point design for efficient forward chip evacuation and clean, straight threads.
• Size & Pitch: 1/2" diameter with 16 threads per inch (1/2 x 16), optimized for through-hole tapping.
• Material & Coating: HSS-E (high-speed steel with cobalt) with a Steam Oxide coating for enhanced wear resistance and heat tolerance.
• Through-Hole Capability: Specifically engineered for through-hole work, promoting consistent alignment and thread quality.
• Chip Evacuation: Spiral point geometry pushes chips forward, reducing clogging and improving tapping efficiency.
• Durability: Cobalt-enhanced substrate and protective oxide finish extend tool life in tougher materials and repetitive use.

This tap is ideal for automotive, general machining, and fabrication environments where BSF 1/2-16 threads in through-holes are required. It delivers dependable, consistent threads while helping to minimize rework, thanks to its combination of robust material, effective coating, and chip-control geometry.