pilot bit

Also found in: Thesaurus, Encyclopedia.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.pilot bit - a small bit that drills a first hole to guide a larger drill
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"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Mentioned in ?
References in periodicals archive ?
This is particularly helpful if you're using a hole-saw bit that uses a central pilot bit.
Use a scrap of plywood as a backer for the hole saw's pilot bit and to protect your work surface.
I know that all the major manufacturers design their hole saws to be removed from the center pilot bit, but the Spyder hole saws have the easiest system I have ever used.
The pilot bit was refitted to drill out the plug and back reaming then continued as normal.
Use a 1/16-inch bit or a #6 pilot bit to prevent splitting.
Make sure the pilot bit on the hole saw goes through the board so you can use the hole to guide the hole saw from the opposite side.
With Brotherton most experienced crew and guidance services provided by Chris Hale of Horizontal Technology Inc., the work began and the pilot bit drilled its way through the cobble and boulders.
It consists of three main components: a symmetrical ring bit (reamer) with an internal bayonet coupling; a pilot bit with large internal air flushing holes and external flushing grooves; and a casing shoe which is welded (or threaded) to the first casing tube.
Tools include a sewing machine, saw, nailset, and an electric drill with a 1/4-inch bit and a long-shanked pilot bit for countersinking the woodscrews (this bit has a 5/16-inch-wide upper flange).
To get clean holes, start the holes from one side, then, as soon as the pilot bit emerges through the opposite side, remove the drill and finish the hole from the other side.