OSG Threading Tap - BSW Spiral Flute HSS-E - Steam Oxide Coated - Blind Hole - 1/4 x 20 Grooving Inserts 7 mm for tight groove

7 mm for tight groove pockets and precise profiling

Built from high-grade carbide and finished with a durable W coating

The through-coolant path and integrated oil hole improve heat management and chip evacuation

the insert installs with confidence on compatible tools

OSG Threading Tap - BSW Spiral Flute HSS-E - Steam Oxide Coated - Blind Hole - 1/4 x 20 Grooving Inserts 7 mm for tight grooveThe OSG BSW Spiral Flute Threading Tap is a high performance tapping tool designed for precise 1 4 20 BSW threads in blind holes. Built for professionals who demand reliability and long tool life, it delivers consistent results in demanding materials and applications. Thread form: 1 4 20 BSW (British Standard Whitworth) threading tailored for blind hole applications in steel and alloys. Material & coating: HSS E (high speed steel with cobalt) for