This is for One Fine Diamond Chisel 4 Prong 3.0MM The moment when these elite chisels touch your fingers, you will be sold. Made from stainless steel featuring a flat style handle that provides a solid grip with every punch. If you regularly handstitch your projects, these top of the line chisels are a must for your custom projects. These are your best choice, especially for that desired tight stitch appearance. Eight inches per stitch. The silver chisel measure the millimeters from point to point.