It seems like all edgers by different mfg. are different in size, a #2 Barry King is smaller than a #2 Craftool! The Barry King comes sharp and ready to use, much sharper than the craftool, it will hold an edge longer and thus you don’t need to sharpen very often, just strop. If you are edging 4 to 5 oz total leather I use #2 , but a #3 will work as well it depends on the edge you want. Hope this helps! Rodney