Material: Steel.
Size: For 3mm and 4mm round rivet studs.
They are for very tiny 3mm or 4mm rivet studs in my shop, please pay attention to the size.

Please note that they may get sightly rusty and oxidized, and may have some anti-rust oil on
them. They are not perfect products, but since they are special in size, they may not be easily
found in the market. So I provide them in my shop and hope my customer can enjoy the
convenience of getting them together with the rivet studs.

How to set the round 3mm/4mm rivet studs: Put this tool on the top cap of the round rivet stud,
hold the tool vertically and use a hammer to hit its top to make the top and bottom piece get
together.