drill bit

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n., v. bit•ted, bit•ting. n.
1. the mouthpiece of a bridle, having fittings at each end to which the reins are fastened.
2. anything that curbs or restrains.
3. a removable drilling or boring tool for use in a brace, drill press, or the like.
4. the cutting part of an ax or hatchet.
5. the wide portion at the end of an ordinary key that moves the bolt.
6. to put a bit in the mouth of (a horse).
7. to curb with or as if with a bit.
8. to grind a bit on (a key).
1. chafe or champ at the bit, to become impatient and restless because of delay.
2. take the bit in or between one's teeth, to reject control; go one's own way.
[before 900; Middle English bite, Old English: action of biting; c. Old High German biz. See bite]



1. a small piece or quantity of something.
2. a short time: Wait a bit.
3. a stereotypic set of behaviors, attitudes, or actions associated with a particular role, situation, etc.: the whole Wall Street bit.
4. Also called bit part. a very small role containing few or no lines. Compare walk-on (def. 1).
5. Informal. an amount equivalent to 12½ cents (used only in even multiples): two bits.
1. a bit, somewhat; a little: a bit sleepy.
2. a bit much, somewhat overdone or beyond tolerability.
3. bit by bit, by degrees; gradually.
4. do one's bit, to contribute one's share to an effort.
5. every bit, quite; just: every bit as good.
6. quite a bit, a fairly large amount.
[before 1000; Middle English bite, Old English bita bit, morsel; c. Old High German bizzo, Old Norse biti. See bite]



a single, basic unit of computer information, valued at either 0 or 1 to signal binary alternatives.
[1945–50; bi (nary) + (digi) t]



pt. and a pp. of bite.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.drill bit - a bit used in drilling for oildrill bit - a bit used in drilling for oil  
bit - the cutting part of a drill; usually pointed and threaded and is replaceable in a brace or bitstock or drill press; "he looked around for the right size bit"
core bit - a hollow drilling bit that is the cutting part of a core drill; allows core samples to be taken
blade bit, fishtail bit - a drilling bit with cutting edges usually hardened against wear
rock bit, roller bit - a drill bit that has hardened rotating rollers
References in periodicals archive ?
I used a 1/4" Forstner bit first to drill a line of three holes at the forward end of the magazine box location.
After burning a wax candle for six to eight hours, I used a 1" Forstner bit to drill a hole through the candle to remove the center wick, and simply pushed the PVC into the hole (figure 4).
First, Dave bores out the bushing's interior threads with a 1-inch Forstner bit in a drill press.
Clamp the base to the drill press table (do not hand hold) and drill two 1/4" deep, 3" diameter holes with a Forstner bit.
Next install a 1 1/2" Forstner bit to cut the arcs that will support the bicycle frame.
The design of the Forstner bit is such it will cut a much cleaner hole than you normally get with a standard twist drill or even a spade bit.
The holes for the axle shaft were rebored with a Forstner bit after lubricant treatment.
I used a 1 3/4-inch Forstner bit to drill through one plywood skin and the paper core, down to the inside surface of the second plywood layer.
I use a forstner bit of 3/4" to 1-1/4" diameter in a drill press.
European hinges are easy to install; all you need is a simple jig and the proper size of Forstner bit.