PN M57800-1992 Ground thread taps for ISO metric threads of tolerances 4H to 8H and 4G to 6G coarse and fine pitches. Manufacturing tolerances on the threaded portion
1992PN M57800-1992 Ground thread taps for ISO metric threads of tolerances 4H to 8H and 4G to 6G coarse and fine pitches. Manufacturing tolerances on the threaded portion