drillchuck
nounUK /ˈdrɪl tʃʌk/
US /ˈdrɪl tʃʌk/
The part of a drill that holds the drill bit tight.
He tightened the drillchuck before drilling into the wall.
RELATED WORDS
OTHER MEANINGS
2. A clamping device with adjustable jaws used to grip a rotating tool or workpiece.
The machinist mounted the workpiece in the drillchuck on the lathe.
3. A keyless mechanism that lets you change bits quickly by hand.
This drillchuck lets you swap bits without a key.
4. The rotating socket at the end of a drill spindle.
The drillchuck spun freely once the motor started.