brace

Hand tool, made up of an angled crank and a pawl and ratchet mechanism, for drilling holes.

jaw

The parts of the chuck that grip the tool to keep it firmly in place.

chuck

Device with jaws for attaching the bit or drill to the tool.

cam ring

Metal cylinder covering the crank above the pawl.

pawl

Small lever for changing the chuck’s direction of rotation by reversing the ratchet motion.

ratchet

Toothed wheel having only one direction of rotation; it is kept in place by the pawl.

quill

Hollow end of the front knob in which the crank turns.

front knob

Knob for holding and stabilizing the tool while the other hand turns the crank by using the handle.

crank

Angled shank whose rotation drives the chuck, by the agency of a pawl and ratchet mechanism.

handle

Movable part for turning the crank.