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2. Chuck (engineering) - Wikipedia

   en.wikipedia.org/wiki/Chuck_(engineering)

   A pin chuck is a specialized chuck designed to hold small drills (less than 1 mm (0.039 in) in diameter) that could not be held securely in a normal drill chuck. The drill is inserted into the pin chuck and tightened; the pin chuck has a shaft which is then inserted into the larger drill chuck to hold the drill securely. Pin chucks are also ...

3. Machine taper - Wikipedia

   en.wikipedia.org/wiki/Machine_taper

   Even on many drill presses, handheld drills, and lathes, which have chucks (such as a drill chuck or collet chuck), the chuck is attached by a taper. On drills, drill presses, and milling machines , the male member is the tool shank or toolholder shank, and the female socket is integral with the spindle.

4. Collet - Wikipedia

   en.wikipedia.org/wiki/Collet

   Several machine collets (top and centre) and a dismantled pin chuck (below). Generally, a collet chuck, [3] considered as a unit, consists of a tapered receiving sleeve (sometimes integral with the machine spindle), the collet proper (usually made of spring steel) which is inserted into the receiving sleeve, and (often) a cap that screws over the collet, clamping it via another taper.

5. After two stamp hikes, the USPS lost nearly $10 billion in 2024

   www.aol.com/two-stamp-hikes-usps-lost-225646450.html

   The U.S. Postal Service's loss widened in fiscal 2024, although revenue rose slightly after two stamp hikes this year.

6. Drill press - Wikipedia

   en.wikipedia.org/wiki/Drill_press

   Benchtop drill press (left) and floor-standing drill press (right) A drill press is a drilling machine suitable for quick and easy drilling of straight holes, countersinking or counterboring that are perpendicular to both directions of a table surface. In comparison, it is more difficult and less repeatable to drill perpendicularly with a hand ...

7. Surge in walking pneumonia affects these high-risk groups ...

   www.aol.com/news/surge-walking-pneumonia-affects...

   Cases of walking pneumonia are spiking across the U.S., according to the CDC. Dr. Marc Siegel speaks with Fox News Digital about common sources, symptoms and treatments.