Take the guesswork out of cutting wire! With this Steel Riveting Block, you can use the holes at the top of the block to cut the perfect length of wire every time. The holes in the middle of the block at 1.8mm deep, allowing you to cut just the right amount of wire to creat a head on both sides. The dimples on the left side are used for support to hold the block when riveting. The dimples on the side of the block are ro rivets and the opposite side are circles for eyelets. This block is used for curved surfaces and should be mounted in a vise for proper use.