Kiyohisa & Sukemaru Japanese Chisel Oire Nomi Carpenter Tool Used by Craftsmen. I bought this intending to use it but ended up storing it away without using it. The sizes for Kiyohisa are 3mm, 6mm, 15mm, 18mm, 21mm, 24mm, and 42mm. For Sukemasa, they are 9mm and 12mm. I believe it’s no longer possible to find these new nowadays.