OSG Threading Tap - UNF Spiral Flute HSS-E - Steam Oxide Coated - Blind Hole - 1/4 x 28 ISO Insert - VB Style and rigid carbide delivers reliable

and rigid carbide delivers reliable performance across steel

delivering consistent results for critical fits in assemblies and test setups

helping you achieve accurate tool alignment and consistent finishes across production runs and demanding jobs

improving control and finish quality even in tougher materials

Solid carbide construction for long tool life: Built from a solid carbide core

OSG Threading Tap - UNF Spiral Flute HSS-E - Steam Oxide Coated - Blind Hole - 1/4 x 28 ISO Insert - VB Style and rigid carbide delivers reliableThe OSG UNF Spiral Flute Threading Tap is a precision threading tool designed for blind hole applications, delivering clean, accurate threads in 1 4" x 28 UNF. Built for machinists and fabrication shops, it combines durable materials with a flute geometry that enhances cutting efficiency and reliability. Thread Size and Type: UNF threading, 1 4" diameter with 28 threads per inch for fine pitch, high precision results. Material: HSS E (high speed steel