Countersink with 3-flutes, 90° chamfering angle, maximum diameter 8.30mm with an overall length of 155mm and a head length of 6.9mm and 6mm straight extended shank, according to DORMER standard to produce a conical seat for ISO Metric countersunk-head screws with a minium hole diameter of 1.80mm, HSS with standard bright finish for machining free machining, plain carbon and alloy steel
Applications:
P - Steel and cast steel(steels with alloy content ? 10% and a hardness of < 45HRC) - Primary use
M - Stainless steel(corrosion resistant steels with ? 11% chromium content) - Possible use
K - Cast Iron(castings of iron and carbon alloys with > 2% carbon content) - Primary use
N - Non-ferrous metals(metals including alloys without an appreciable amount of iron) - Primary use
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