Sturdy and ---These grommet punch tools are made from high quality carbon steel for high hardness and long service life. Well designed tool, easy to use and carry, handle is comfortable to grip. Different Size---We offer 5 sizes for you to choose from 4mm, 12mm, 14mm, 17mm, 20mm. The sizes stated here are internal diameters of grommets, namely if you need to fix grommets of inner size 4mm, please choose 150#/4mm. Eyelet Punch Tool---This grommet punch tool has two parts, top die and bottom die that are working together to punch grommets. Perfect for making or repairing leather craft, clothing, handbags, curtain, jackets, etc. Widely Used---The practical grommet punch tool is very essential equipment for dress makers, artists, craftsmen, sign shops and clothes manufacturers, etc. It is easy to use no matter you are a professional or novice. Widely Used---The practical grommet punch tool is very essential equipment for dress makers, artists, craftsmen, sign shops and clothes manufacturers, etc. It is easy to use no matter you are a professional or novice.