Description
Combination drill-tap with a 30 Degree spiral flute, for ISO-Metric thread M8 with 1.25mm pitch and 6H class of fit, dimensions according to DORMER-ISO standard with 8.0mm shank and 6.3mm square drive, HSS with steam tempered surface finish and 30 Degree helix angle for 1.5xD through hole threading in free machining steel.
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