E542BA2NO3 HSS Straight Flute Hand Tap, BA, ISO Standard

Straight flute hand tap NO3 with a 2-3xP plug lead, for British Association thread BA 2 with 0.81 mm pitch and Normal class of fit, dimensions according to ISO 529 standard with 5.0mm shank and 4.0mm square drive, HSS with bright finish for 1.5xD through or blind hole threading in free machining and plain carbon steel