Saddlers harness awl blades for leather work. It is made by the same manufacturer as System S+U needles with high-quality steel from Germany. Diamond point. Best awl blades for your custom awl handles.
 
This is a sharp version compare to the B range (can be purchased here). The sharp grinded blade allows you to cut through leather like butter. However, the B range is also sharp enough for stitching, many users prefer to purchase the B range then grind it and narrow down to their desired width.
 
The price is for one blade.