A drill is a tool fitted with a cutting tool attachment or driving tool attachment, usually a drill bit or driver bit, used for boring holes in various materials or fastening various materials together with the use of fasteners. The attachment is gripped by a chuck at one end of the drill and rotated while pressed against the target material. The tip, and sometimes edges, of the cutting tool does the work of cutting into the target material. This may be slicing off thin shavings (twist drills or auger bits), grinding off small particles (oil drilling), crushing and removing pieces of the workpiece (SDS masonry drill), countersinking, counterboring, or other operations.
Drills are commonly used in woodworking, metalworking, construction and do-it-yourself projects. Specially designed drills are also used in medicine, space missions and other applications. Drills are available with a wide variety of performance characteristics, such as power and capacity.

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  1. arakboss

    Restricting School Lockdown Drills.

    I have been really bothered by the testimony from students, educators and parents regarding the trauma they experience when going through lockdown drills. Most recently with testimony in SB 978 hearing. I can't tell if they are being sincere or if it's an act to try and gain sympathy from...
  2. bbbass

    Tactical reload drills - Much benefit?

    I was watching a bunch of Youtube vids from John Correia of Active Self Protection... in one of the vids he opined that he didn't know of a single civilian gunfight where the defender had needed to reload. And so he thought that tactical reload drills (defined as: during a pause in shooting, a...
  3. PNWguy

    Are you woefully out of practice in self-defense drills, like me?

    Was in a discussion on another forum about the somewhat recent trend of it being the coolest thing to attend high-dollar defensive shooting classes at places like Gunsite, Thunder Ranch, Front Site, etc. People spend thousands of dollars to get training on how to engage threats, move...
  4. RicInOR

    Situational Awareness Tips & Drills

    Situational Awareness Tips & Drills
  5. RicInOR

    Drills - for personal practice

    Some drills are easy to setup and some can't be done in certain ranges (start facing up range...good luck unless you are at a proper safe place) What drills do you like ? Preference to share simple to setup / minimal equipment required. - do you need one target or many? - do you need a...
  6. Diamondback

    Crowdsourcing: Drill & Qualifier Recommendations?

    I've been starting to toy with a new series idea for my weekly column at RedState, a "Drill of the Month." Basically, posting a drill or an LE/Military qualification course-of-fire, and inviting the readers to shoot it and submit their best score for acknowledgment in the next month's DOTM...
  7. Diamondback

    Question for you DIY/power-tools types out there

    OK, guys, I've done about all the drilling by hand that my hand will let me, and I need some advice. Specifically, I need a recommendation for a cordless drill to put a 3/8" hole through a 1.25" block of 7075-T6 aluminum, or a 1/2" one through various plastics. (I know, conventional answer is...
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