drill chuck

noun

1. a chuck for holding a drill bit.

Word History and Origins

Origin of drill chuck¹

First recorded in 1870–75

Example Sentences

The drill chuck q is attached to and driven by a one-inch steel spindle 19 inches long, which is accurately fitted through the sleeve bearings, within which it is free to move up and down, but is made to revolve with the cone by means of the connection o, one end of which slides upon the rods l.

From Project Gutenberg

The triangular drill for drilling dead square holes may also be used without the self-adjusting drill chuck in any ordinary chuck, when the substance operated upon is not very heavy nor stationary; then, instead of the lateral movement of the drill, such lateral movement will be communicated by the drill to the substance operated upon.

From Project Gutenberg

In other forms of similar chucks the bite is a V recess parallel to the chuck axis, the only difference between a drill chuck for a drilling machine and one for a lathe being that for the former the jaws do not require outside bites nor to be reversible.

From Project Gutenberg

In making oblong dead square-cornered holes, either the substance to be operated upon must be allowed to move in one direction more than another, or the hole in the guide plate must be made to the shape required, and the drill chuck made to give the drill greater play in one direction.

From Project Gutenberg

A very convenient form of drill chuck for small drills is shown in Fig.

From Project Gutenberg