INSIZE 6253-W1 支撑螺纹齿厚标准块 (4 1/2" ~ 13 3/8", external threads gauge)

Taper: 1:16

Threads per inch: 5

Remark: can calibrate 4 1/2" ~ 13 3/8" buttress external thread gauge

Set zero buttress thread tooth thickness gauges (code 2239 series)