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2. Drill - Wikipedia

   en.wikipedia.org/wiki/Drill

   A drill press (also known as a pedestal drill, pillar drill, or bench drill) is a style of drill that may be mounted on a stand or bolted to the floor or workbench. Portable models are made, some including a magnetic base.

3. Magnetic drilling machine - Wikipedia

   en.wikipedia.org/wiki/Magnetic_drilling_machine

   A morse taper 3 arbor equipped magnetic drill machine using taper shank drill bits. The arbor or chuck on a magnetic drill is attached to the motor. It is a type of clamp used to attach the core drills. There are mainly two types of chuck available for the magnetic drill, industrial arbor (manual tightening) and quick change drill chucks. The ...

4. Drill bit - Wikipedia

   en.wikipedia.org/wiki/Drill_bit

   While the above is a common use of center drill bits, it is a technically incorrect practice and should not be considered for production use. The correct tool to start a traditionally drilled hole (a hole drilled by a high-speed steel (HSS) twist drill bit) is a spotting drill bit (or a spot drill bit, as they are referenced in the U.S.). The ...

5. Drilling - Wikipedia

   en.wikipedia.org/wiki/Drilling

   The key feature of gun drilling is that the bits are self-centering; this is what allows for such deep accurate holes. The bits use a rotary motion similar to a twist drill; however, the bits are designed with bearing pads that slide along the surface of the hole keeping the drill bit on center.

6. Mortiser - Wikipedia

   en.wikipedia.org/wiki/Mortiser

   For cutting small mortises, a normal drill bit can be used. However, for larger mortises, a common type of bit in modern mortisers is a Harry Watt square drill bit, in which a bit with a Reuleaux triangle cross section is allowed to "wobble" while it rotates within a square with rounded corners [citation needed]. This type of bit removes all ...

7. Reamer - Wikipedia

   en.wikipedia.org/wiki/Reamer

   When using combination reamers to ream large internal diameters made out of material with lower surface feet per minute, carbide tips can be brazed onto a configured drill blank to build the reamer. Carbide requires additional care because it is very brittle and will chip if chatter occurs.

8. Machine taper - Wikipedia

   en.wikipedia.org/wiki/Machine_taper

   Machine tool operators must be able to install or remove tool bits quickly and easily. A lathe, for example, has a rotating spindle in its headstock, to which one may want to mount a spur drive or work in a collet. Another example is a drill press, to which an operator may want to mount a bit directly, or using a drill chuck.

9. Brace (tool) - Wikipedia

   en.wikipedia.org/wiki/Brace_(tool)

   A brace is a hand tool used with a bit (drill bit or auger) to drill holes, usually in wood. Pressure is applied to the top while the handle is rotated. If the bit's lead and cutting spurs are both in good working order, the user should not have to apply any pressure other than for balance: the lead will pull the bit through the wood.