J-37 Manual Plastic Grommet Press, 1/2″ (12mm).j-37手動塑料墊圈出版社1 / 2“12mm。#JPJ37: Our basic hand press for #1029;” inner diameter (12mm) plastic grommets. One stroke action; punch hole in the material and and place eyelet and washer, to compress and set the grommet.# jpj37我們的基本手按# 1029“內徑12mm的塑料墊圈。一次動穿孔在物和放孔和墊圈墊圈壓縮置。