OSG Threading Tap - BSF Spiral Point HSS-E - Steam Oxide Coated - Through Hole - 5/16 x 22 Spares intermediate-precision tool designed to finish

intermediate-precision tool designed to finish drilled holes to a precise diameter

while the compact form factor reaches into tight features common in precision components

Across production runs or DIY projects

8 mm diameter provides robust cutting capacity

and help maintain precision across repeated holes in demanding materials

OSG Threading Tap - BSF Spiral Point HSS-E - Steam Oxide Coated - Through Hole - 5/16 x 22 Spares intermediate-precision tool designed to finishThe OSG BSF Spiral Point Threading Tap is a precision tool designed for through hole BSF threads. Crafted from HSS E cobalt and finished with a durable steam oxide coating, it delivers reliable cutting performance, extended tool life, and consistent thread quality in demanding machining environments. Thread Type: BSF (British Standard Fine) spiral point design optimized for through hole tapping, with a geometry that pushes chips forward for efficient