sink strainer
Bits Of Metal are useful for Tinkering and Trading.
You can find Bits of Metal at The Silver Trees Wilderness.
iron filings!
Metal in the transmission pan indicates a problem with the transmission. The most likely cause is gears grinding against one another, shaving off small bits of metal as they do so.
HSS bits or Carbide bits will do fine
In general, you can't get metal through metal detectors. Only the smallest bits of metal will not cause a metal detector to alarm. If the sensitivity of the detector is set too high, it may be possible to get a small piece of metal past the detector, but that is something that cannot be counted on.
Magnatite.
filings
Hundreds of types of metal drill bits are made. The most common are HSS (high speed steel) bits for everyday drilling of woods and plastics. There are carbide and tungsten coated bits for drilling metals and diamond tipped bits for drilling tile and stone and many other types.
Tungsten is a major component in those drilling bits.
Molecules are very microscopic. They are so small they cannot be seen with the naked eye.
The small bits of tissue that are carried in cup-like structures on liverworts, are called villi.