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2. Gimlet (tool) - Wikipedia

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

   A gimlet is a hand tool for drilling small holes, mainly in wood, without splitting. It was defined in Joseph Gwilt's Architecture (1859) as "a piece of steel of a semi-cylindrical form, hollow on one side, having a cross handle at one end and a worm or screw at the other".

3. Pilot hole - Wikipedia

   en.wikipedia.org/wiki/Pilot_hole

   Very large holes may be stepped by drilling successively larger pilot holes before the final size drill is used. [ 1 ] On harder materials, such as most metals and many plastics, and sometimes on softer materials like wood, a center punch is used before drilling the pilot hole to ensure that the smaller pilot drill bit does not slip and that it ...

4. 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.

5. Glossary of woodworking - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_woodworking

   A hand tool for drilling small holes in wood without splitting, typically a semi-cylindrical piece of steel that is hollow on one side, having a cross handle at one end and a worm or screw at the other. gouge A chisel-like tool with a curved cutting edge. grain The longitudinal fibers in wood. green wood

6. Tap and die - Wikipedia

   en.wikipedia.org/wiki/Tap_and_die

   From top: Bottoming, plug and taper taps (US usage), or plug, second and taper (UK usage). Various taps. A tap and "T" wrench Various tap handles (wrenches). A tap cuts or forms a thread on the inside surface of a hole, creating a female surface that functions like a nut.

7. Drilling - Wikipedia

   en.wikipedia.org/wiki/Drilling

   Cutting fluids are not used or needed. The main issue in drilling wood is ensuring clean entry and exit holes and preventing burning. Avoiding burning is a question of using sharp bits and the appropriate cutting speed. Drill bits can tear out chips of wood around the top and bottom of the hole and this is undesirable in fine woodworking ...

8. Why there are tiny holes at the bottom of windows on planes

   www.aol.com/lifestyle/2017-04-24-plane-window...

   The second of the hole's uses is to keep the window free of fog, condensation and other things that may impact visibility. By allowing warm air to infiltrate in between the two panes, the breather ...

9. Countersink - Wikipedia

   en.wikipedia.org/wiki/Countersink

   In manufacturing, a countersink (symbol: ⌵) is a conical hole cut into a manufactured object, or the cutter used to cut such a hole. A common use is to allow the head of a countersunk bolt , screw or rivet , when placed in the hole, to sit flush with or below the surface of the surrounding material (by comparison, a counterbore makes a flat ...