OSG Threading Tap - UNC Spiral Point HSS-E - Steam Oxide Coated - Through Hole - No. 4 x 40 Face Mill Arbors - Anti-Vibration a taper shank for secure

a taper shank for secure seating in compatible toolholders

and compatibility with standard turning centers

and longevity in metalworking

25 mm diameter is suitable for a wide range of applications

Material Compatibility: Suitable for machining materials up to HRc55

OSG Threading Tap - UNC Spiral Point HSS-E - Steam Oxide Coated - Through Hole - No. 4 x 40 Face Mill Arbors - Anti-Vibration a taper shank for secureThe OSG UNC Spiral Point Threading Tap No. 4 x 40 is a precision threading tool designed for through hole applications, delivering clean, accurate UNC threads with reliable tool life. Built from cobalt infused HSS E and finished with a steam oxide coating, its engineered for demanding machining environments. Thread Type: UNC spiral point design optimized for through hole tapping, promoting efficient thread formation. Material: HSS E (high speed steel