A wooden or metal block with a very precise flat sole, used for flattening the hollow back (ura) of plane blades and chisels on a flat stone. Not a shaping tool but a maintenance and preparation tool — the flat back of a Japanese blade is what allows the bevel to be honed so precisely. Maintaining the ura is as important as sharpening the bevel.
Maker's Stamp / Mei (銘)Mei stamp — Uraoshi KannaTechnical Data
CategoryPlane
RegionsNationwide
Best Materials
Tool MaintenanceBlade Preparation
Find a Uraoshi Kanna
Shop from vetted vendors for authentic Uraoshi Kanna (裏押し鉋). Prices range from entry-level to master-smith pieces.
