| Frequently excavated stone tools are as follows: One side of the stone is like a knife, and one or two holes are made on the side of stone to put the thread through so that people hang it on the finger or put it around the hand to prevent it from dropping. |
片面を鈍い刃（→ナイフ）のようにし、側面に1つないし2つくらいの穴を開け、紐を通し脱落防止のために指に引っ掛けたり手の甲に巻きつけ固定して使えるようにしたものが、しばしば出土する。 |