The upper screw thread size of dies is 8mm & the bottom base size is 19mm.
These dies are made of cast iron which makes them durable, strong and sturdy
This dies are compatible with green hand press machine to install high pyramid pin studs of size 7mm to 12mm
Pyramid dies when used with the green hand press machine speeds up the process of installing studs/rivets over any fabric material
These tools are perfect for fixing studs/rivets in decorate bags, belts, jackets, clutches, leathercrafts, DIY and arts & craft projects.
Please note: Package includes dies only, Green machine & studs/rivets are not included