The OSG BA Spiral Flute Threading Tap in 5BA is a precision tapping tool designed for blind-hole applications, delivering clean, accurate BA threads in tight spaces with dependable performance.

• Thread size: 5BA British Association thread for small-diameter holes
• Flute design: Spiral flute geometry to aid chip evacuation in blind holes
• Material: HSS-E (high-speed steel with cobalt) for superior hardness and wear resistance
• Coating: Steam oxide coating to reduce friction and extend tool life
• Application: Specifically engineered for blind-hole tapping
• Brand: OSG — trusted threading technology for precision work

When you need dependable, consistent threads in confined spaces, this tap delivers. The spiral flute helps carry chips away from the thread path, minimizing chatter and the risk of cross-threading in blind holes. The HSS-E composition stands up to heat and wear, letting you tackle tougher materials and deeper taps without dulling. Steam oxide coating reduces friction during cutting, which lowers torque and improves surface finish. Use this tap to produce precise 5BA threads that fit snugly in small assemblies, from electronics enclosures to compact mechanical fittings. It’s a durable, long-lasting choice for production runs or repair work where precision matters.