OSG Threading Tap - BSF Spiral Flute HSS-E - Steam Oxide Coated - Blind Hole - 3/16 x 32

Achieve precise threading with the OSG BSF Spiral Flute Threading Tap. Built for machinists and shops that demand durable, accurate threads in blind-hole applications, this tap combines toughness with reliable performance.

• Size and thread: 3/16" diameter, 32 threads per inch (3/16-32 BSF) for blind-hole tapping.
• Material: HSS‑E (high-speed steel with cobalt) for improved wear resistance and heat tolerance.
• Coating: Steam oxide coating enhances surface durability and lubricity under cutting loads.
• Flute design: Spiral flute aids chip evacuation, reducing chip packing and increasing tapping speed in confined blind holes.
• Application: Optimized for blind-hole threading in tough materials where clean, accurate BSF threads are critical.
• Brand and precision: Engineered by OSG for consistent thread forms, extended tool life, and reliable performance in critical machining tasks.

This tap delivers consistent thread quality from start to finish, with a robust build that withstands the heat and friction of metal tapping. The cobalt-enhanced HSS supports longer tool life and smoother cutting action, while the steam-oxide finish reduces galling and enhances lubricity. Whether refurbishing gear housings, assembling precision components, or completing maintenance work, you’ll appreciate the clean threads and dependable performance this tap provides.