大头锤 meaning in Chinese

coppering hammer

Then he hammered on the door , using his fists as if they were mallets
然后他用他的拳头敲门,就像用大头锤一样。
These restaurants cover their tables with brown paper , unload a bushel of crabs on the table and provide knives and mallets for customers to pry the crabs open
这些餐厅的桌上铺有棕色纸张，服务生会把大批的螃蟹放在桌上，餐厅会提供顾客撬开螃蟹专用的刀子及大头锤。