DIN 802-3 Tolerances on the threaded portion of taps - Part 3: Ground taps for pipe thread (G) according to DIN EN ISO 228-1 and pipe thread (Rp) according to DIN EN 10226-1 - Manufacturing tolerances on the threaded portion

standard by Deutsches Institut Fur Normung E.V. (German National Standard), 11/01/2008