滚刀

Traditional form:

滾刀

Pinyin (reading):

gǔndāo

Definitions:

• (engineering) gear hob (cutting tool used in manufacturing gears)

Characters:

• 滚 - to boil, to roll, to turn
• 刀 - knife; old coin; measure

Traditional characters:

• 滾 - to boil, to roll, to turn
• 刀 - knife; old coin; measure