LOOK AT THE PICTURE, Φ3.5MM+Φ4MM HOLES ARE USED TO INSTALL SIZE 12 RIVETS,Φ4.2MM+Φ5MM HOLES ARE USED TO INSTALL SIZE 9 RIVETS

Copper rivets are the best option for holding power and durability,the most popular copper rivets are size 9 and size 12,other tools are normally designed for size 9 or size 12 copper rivets.Our tool is used for installing both #9 and #12 burrs copper rivets.Also,this tool is made of stainless steel material,no rust,shinning and smooth.

We also supply snap fastener intall tool,round head rivet install tool,hole punch tool,sewing tool,belt coner punch and many tools with different function for leather craft,welcome to select in our amazon store"DGOL",if you are interested in.