A heavy-duty boring chisel for removing large amounts of material from deep mortises. Features a flanged collar (tsuba) that limits penetration depth and provides a striking platform. Used alongside regular chisels for the initial rough-out of deep housing joints in structural timber framing.
Maker's Stamp / Mei (銘)Mei stamp — TsubanomiTechnical Data
CategoryDrilling
RegionsSanjo, Niigata
Traditional Steels
This tool category is traditionally forged from the following steels. Click any to read its full metallurgical profile.
