Dormer Threading Tap, M12 Thread, 1.75mm Pitch, Metric Coarse Standard

The Dormer Set of straight flute serial taps NO8 for ISO Metric thread M12 with 1.75 mm pitch and 6H class of fit. It consisting of 1 tap with a truncated thread profile and 6 to 8xP taper lead, 1 tap with a truncated thread profile and 3.5 to 5xP second lead and 1 tap with a 2 to 3xP plug lead. The dimensions according to ISO 529 standard with 9.0 mm shank and 7.1mm 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