Brace (tool)


Brace (tool)

A brace or brace and bit is a hand tool used to drill holes, usually in wood. Pressure is applied to the top and the tool is rotated with a U-shaped grip.

The U-shaped part is a kind of crankshaft. It gives the brace much greater torque than other kinds of hand drill; a brace can be used to drill much wider, and deeper, holes than can a gear-driven hand drill. The price of the greater torque is lower rotational speed, however; it is easy to for a hand drill to achieve a rotational speed of several hundred revolutions per minute, but it requires considerable effort to achieve even 100RPM with a brace. It is also difficult to hold a brace exactly straight while using it, which makes the brace unsuitable for precision drilling.

The front part of the brace consists of a chuck spindle with V-shaped brackets or clamps inside. Turning the spindle of the chuck in a clockwise direction tightens the drill bit in the chuck and turning in a counter-clockwise direction loosens the bit for removal.

In most braces, immediately behind the chuck is a three position gear release which allows ratcheting of the handle when in tight spots. Turning the gear release from the center position allows ratcheting the brace in the direction needed. Turning the gear release fully clockwise lets it remove wood in a clockwise direction with the ratchet action going counter-clockwise. Placing the gear release fully counter-clockwise then allows turning the brace and bit in a counter-clockwise direction, usually to remove the drill bit from the hole. The center position of the gear release prohibits the ratcheting effect.

The U-shaped crank has a wooden spindle on it and, along with the top spindle, is allowed to freely turn under the hands without producing wear and tear on the hands (thus, no blisters).


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Brace — may refer to:Medical* Brace (orthopaedic), a device used to restrict or assist body movement * Back brace, a device limiting motion of the spine ** Milwaukee brace, a kind of back brace used in the treatment of spinal curvatures * Cervical collar …   Wikipedia

  • brace and bit — n. a tool for boring, consisting of a removable drill (bit) in a rotating handle ( brace): see DRILL1 * * * ▪ hand tool   hand operated tool for boring holes in wood, consisting of a crank shaped turning device, the brace, that grips and rotates… …   Universalium

  • Brace matching — Brace matching, or parentheses matching, is a syntax highlighting feature of certain text editors and integrated development environments that highlights matching sets of braces in languages such as Java and C++ that use them. The purpose is to… …   Wikipedia

  • brace — ► NOUN 1) (braces) Brit. a pair of straps passing over the shoulders and fastening to the top of trousers to hold them up. 2) a strengthening or supporting piece or part. 3) a wire device fitted in the mouth to straighten the teeth. 4) (also… …   English terms dictionary

  • brace — brace1 [brās] vt. braced, bracing [ME bracen < OFr bracer, to brace, embrace < L brachia, pl. of brachium, an arm < Gr brachiōn, arm, upper arm < brachys, short (in contrast to the longer lower arm): see MERRY] 1. to tie or bind on… …   English World dictionary

  • brace and bit — n. a tool for boring, consisting of a removable drill (bit) in a rotating handle ( brace): see DRILL1 …   English World dictionary

  • brace and bit — noun a drill consisting of a bit and a brace to hold and turn it • Hypernyms: ↑drill • Part Meronyms: ↑brace, ↑bitstock * * * brace and bit, a tool for boring, consisting of a drill (the bit) fitted into a handle (the brace). * * * …   Useful english dictionary

  • brace — I UK [breɪs] / US verb Word forms brace : present tense I/you/we/they brace he/she/it braces present participle bracing past tense braced past participle braced 1) [intransitive/transitive] to get ready for something unpleasant brace yourself for …   English dictionary

  • Tool — For other uses, see Tool (disambiguation). A modern toolbox. A tool is a device that can be used to produce an item or achieve a task, but that is not consumed in the process. Informally the word is also used to describe a procedure or process… …   Wikipedia

  • tool — I (New American Roget s College Thesaurus) n. instrument, implement, utensil, device, machine; cat s paw, dupe, henchman, intermediary. See instrumentality. II (Roget s IV) n. 1. [An implement] Syn. implement, utensil, machine, instrument,… …   English dictionary for students


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.