round mallet; wooden mallet
A wooden mallet with a cylindrical head, used in woodworking, sculpture, or adjusting planes.
大工さんは横槌で鑿を叩いた。
The carpenter struck the chisel with a round mallet.
横槌は木工細工に欠かせない道具だ。
A round mallet is an essential tool for woodworking.
Compound of 横 (yoko, 'side, horizontal') and 槌 (tsuchi, 'hammer, mallet'), referring to the horizontally mounted cylindrical head.