A 4mm measurement is roughly equivalent to the thickness of a credit card or a standard pencil lead. It’s slightly less than the width of a dime, which is about 1.35mm thick, making 4mm about three times thicker. Additionally, it's similar in size to a small paperclip, providing a tangible reference for its dimension.
4mm its in the question
3 to 4mm
216 mm3
A 4mm diamond measures 4mm in at least one measurement.
As wide as 4mm on a ruler
4mm is 0.15748032 of an inch.
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4mm-6mm in inches = -2
4mm is smaller than 5mm
Honey, just look for the little tick mark that says "4" on that ruler of yours. It's not rocket science, just a tiny line on a piece of plastic or metal. If you can't find it, maybe it's time to invest in some reading glasses.
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There are 25.4mm to one (1) inch, so there would be approximately six (6) 4mm beads per inch. If buying a 16" hank of 4mm bicone beads, you would be buying approximately 100 4mm beads.