As you're working with a tool, right before it's about to kick back at you -- which means the piece or the tool jumps back at you -- it makes a sound.
도구를 사용하다가 도구가 자신에게 날아오기 직전에- 그러니까 나무조각이나 도구가  튀어서 자신에게 날아올 때 먼저 소리가 나겠죠.