Dormer Threading Tap, M4 Thread, 0.7mm Pitch, Metric Standard, Machine Tap

Range of cobalt metric pitch left-hand threaded machine tap bits.
These tap bits have a short I/P of
2 threads.
The tap bit tolerance class is 6H, the cutting angle is 10° and the tap flutes are straight. The cut is left-handed, and the stem is reinforced.
These high-quality tap bits are ideal for tapping in blind or through-holes.

Rolled Flute Taps

Bright finish fluteless taps; for use on copper, aluminium, magnesium, brass, zinc etc.
Flash chrome finish fluteless taps; for use on steel up to 850N/mm² tensile strength, free matching and austenitic stainless steel
Made to ISO529 standard for tapping blind and through holes in a wide range of ductile materials
Smooth non-cutting action produces greater thread formed strength, higher life expectancy and increased tapping speeds especially where excessive tension occurs