Yuji Funatsu, the 3rd generation Funahiro, is revered practically as a national treasure. He pioneered the scientific use of metallurgical microscopes alongside pure traditional craftsmanship, and is famous for producing legendary plane blades that command 5- to 6-figure prices on the secondary market. His Oroshigane (self-smelted steel) plane blades are among the most-discussed tools in the Japanese woodworking community.