For hand tools, the handle styling and ergonomic considerations are very important.A long-term use of an immoderate handle will cause discomfort, or do harm to wrists and muscles.

• 以手工具为例，握把的造形与人因的考量是非常重要的，若长期抓握不适合的握把，容易导致肌肉与手腕的伤害。