四し方ほう反そり鉋かんな

noun

wooden plane with a convex base curved both along and across the blade

Specialized woodworking tool used for shaping concave surfaces; the base is curved in two directions. Compare with 反台鉋, which is curved only along the blade direction.

See also: 反り台鉋

• 職しょく人にんは四し方ほう反そり鉋かんなで曲きょく面めんを仕し上あげた。

  The craftsman finished the curved surface with a shihōsori-kanna.