The Dormer Straight flute hand tap NO1 with a 6 to 8xP taper lead with 0.45 mm pitch and 6H class of fit. The dimensions according to ISO 529 standard with 2.8 mm shank and 2.24 mm square drive, HSS with bright finish for 1.5xD through or blind hole threading in free machining and plain carbon steel.
Versatile tool Suitable for hand and machine tapping Straight flute hand taps for ISO Metric thread Straight flute design for both through and blind holes
