reamer
/ˈriːmə(r)/noun
1- a tool for widening or finishing drilled holes扩空钻, 铰刀; 钻空器。
1.1
- an instrument for scraping the burrs off the inside of water pipes（水管）刮垢器。
1.2
- a blade for scraping the carbon layer from the inside of the bowl of a smoking pipe（烟斗）刮垢刀。
1.3
- North American term for LEMON-SQUEEZER.〈北美〉同LEMON-SQUEEZER.