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2. Screw extractor - Wikipedia

   en.wikipedia.org/wiki/Screw_extractor

   The screw is first drilled out to the proper diameter for that extractor. The extractor is then inserted into this hole and turned in the direction opposing the stuck screw's original one, usually using a tap wrench. As the extractor is turned, the flutes on the tool dig into the screw, causing it to lock tightly and withstand the applied ...

3. Drill bit - Wikipedia

   en.wikipedia.org/wiki/Drill_bit

   Screw extractors are essentially left-hand bits of specialized shape, used to remove common right-hand screws whose heads are broken or too damaged to allow a screwdriver tip to engage, making use of a screwdriver impossible. The extractor is pressed against the damaged head and rotated counter-clockwise and will tend to jam in the damaged head ...

4. Metalworking hand tool - Wikipedia

   en.wikipedia.org/wiki/Metalworking_hand_tool

   This means the user does not need to change their arm and hand position when moving from hammer to slapper. The slapper can be far more effective than the hammer for shrinking metal, because its leverage gives greater mechanical advantage over the rough spots. The slapper is great for working metal over a T-stake, or for gouging and planishing.

5. Irwin Industrial Tools - Wikipedia

   en.wikipedia.org/wiki/Irwin_Industrial_Tools

   Previous logo. Irwin Industrial Tools is an American manufacturer and distributor of hand tools and power tool accessories. It is owned by Stanley Black & Decker.It is best known for producing Vise-Grip locking pliers.

6. Tap wrench - Wikipedia

   en.wikipedia.org/wiki/Tap_wrench

   Two double-end adjustable tap wrenches and a T-handle tap wrench. There are two main types of tap wrenches: double-end adjustable wrenches and T-handle wrenches.Double-end adjustable wrenches, also known as bar wrenches, have one threaded handle which is attached to one of the clamps.

7. Tap and die - Wikipedia

   en.wikipedia.org/wiki/Tap_and_die

   Integrated screws appear to be common in the US but are almost unknown in the UK and Europe. The dies shown in the image to the right are adjustable: top left: an older split die, with top adjusting screw; bottom left: a one piece die with top adjusting screw; center: a one piece die with side adjusting screw (barely visible on the full image)