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2. Robertson screw - Wikipedia

   en.wikipedia.org/wiki/Robertson_screw

   A Robertson screw, also known as a square screw [1] or Scrulox, [2] is a type of screw with a square-shaped socket in the screw head and a corresponding square protrusion on the tool. Both the tool and socket have a slight taper .

3. List of screw drives - Wikipedia

   en.wikipedia.org/wiki/List_of_screw_drives

   A security Torx screw drive is a common modification to socket and cruciform style drives to make the fastener more tamper resistant by inserting a pin in the center of the female socket, requiring a tool with a corresponding hole to drive the fastener. This can also prevent attempts at turning the screw with a small flat-bladed screwdriver.

4. Pratt-Read - Wikipedia

   en.wikipedia.org/wiki/Pratt-Read

   The company made its first screwdrivers in 1834 but stopped in 1840, instead selling the handles and blades to smaller companies made at the Pratt, Read and Company Factory Complex. During World War II, the company continued producing screwdriver blades and suspended production of piano parts to manufacture Waco CG-4 gliders for the military. [5]

5. Gunsmith - Wikipedia

   en.wikipedia.org/wiki/Gunsmith

   Checkering tools, showing tiny saw-teeth used to create v-grooves. A gunsmith checkering the fore-end of a rifle. (This specialization is frequently combined with that of the Stockmaker) Uses checkering tools to create an ornate pattern of small raised diamonds in the wood surfaces which are to be gripped.

6. Today's Wordle Hint, Answer for #1259 on Friday, November 29 ...

   www.aol.com/todays-wordle-hint-answer-1259...

   Today's Wordle Answer for #1259 on Friday, November 29, 2024. Today's Wordle answer on Friday, November 29, 2024, is HIPPO. How'd you do? Next: Catch up on other Wordle answers from this week.

7. 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 ...