Sherwood Machine Tap, No.4 x 40 UNC, UNC, Spiral Point, High Speed Steel, Steam Tempered

IS0 529 - Spiral point/gun nose are manufactured from HSS with a black oxide coating for added strength durability and a prolonged tool lifespan. Features and Benefits • HSS construction for added tool strength • Black oxide coating protects angainst wear caused by use and heat • Class 2 thread forms / medium fit tolerance • Precision ground flutes for greater tool accuracy Typical Applications • Tapping Standards • Tap dimensions to ISO529