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2. Yankee screwdriver - Wikipedia

   en.wikipedia.org/wiki/Yankee_screwdriver

   The trade name "Yankee" screwdriver was first marketed by North Brothers Manufacturing Company in ≈16 April 1895, with the No. ≠130 spiral ratchet screwdriver. Yankee soon became and still is a well-known name in automatic spiral ratchet screwdrivers , with several other models, and model improvements patented by North Bros. over a 40-year ...

3. List of screw drives - Wikipedia

   en.wikipedia.org/wiki/List_of_screw_drives

   The wall adapter has a molded screwdriver on its case to facilitate this. TP3 (sometimes referred to as tri-lobe or tri-lobular ) uses a Reuleaux triangle -shaped recess in the screw head, to make it semi-secure because it cannot be driven by a flat-blade screwdriver [ 89 ] and is not readily driven, as Tri-angle is, by hex keys.

4. Screwdriver - Wikipedia

   en.wikipedia.org/wiki/Screwdriver

   These often have a hollow handle that contains various types and sizes of tips, and a reversible ratchet action that allows multiple full turns without repositioning the tip or the user's hand. A screwdriver is classified by its tip, which is shaped to fit the driving surfaces (slots, grooves, recesses, etc.) on the corresponding screw head.

5. Ratchet (device) - Wikipedia

   en.wikipedia.org/wiki/Ratchet_(device)

   A ratchet (occasionally spelled rachet) is a mechanical device that allows continuous linear or rotary motion in only one direction while preventing motion in the opposite direction. Ratchets are widely used in machinery and tools. The word ratchet is also used informally to refer to a ratcheting socket wrench.

6. Socket wrench - Wikipedia

   en.wikipedia.org/wiki/Socket_wrench

   Socket set with ratchet (above), four hex sockets and a universal joint. A socket wrench (or socket spanner) is a type of spanner (or wrench [1] in North American English) that uses a closed socket format, rather than a typical open wrench/spanner to turn a fastener, typically in the form of a nut or bolt.

7. List of The Transformers characters - Wikipedia

   en.wikipedia.org/wiki/List_of_The_Transformers...

   Ratchet: 1980 Nissan Vanette ambulance: More Than Meets the Eye (Part 1) Killed by Megatron in gun mode, held by Starscream, in The Transformers: The Movie. Don Messick, Wally Burr ("Masquerade" episode only) Dead Ratchet was the best tool-and-die man on Cybertron, and is the Autobots' chief medical officer. [11]