| 释义 |
drill bit
noun[ C ]
uk /ˈdrɪl ˌbɪt/ us /ˈdrɪl ˌbɪt/
the long sharp part of a drill(= a tool or machine that makes holes) that spins around and cuts the hole:
I need a 1 3/4 inch drill bit.
The rock was so hard that the crew broke two or three drill bits each day.
A rotary saw is similar to a drill that uses a saw blade instead of a drill bit.
After a few attempts at drilling down, the drill bit became stuck.
Start with a drill bit just slightly larger in diameter than the hole going through the rivet.
Synthetic diamonds are used in tools like drill bits and sanders.
To drill holes in a mirror, you need a special drill bit with a spear point.
SMART Vocabulary: related words and phrases
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adze
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plunger
prong
rasp
razor knife
reamer
sander
trowel
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