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The Dr. Bill FAQ

How do they get that hole in a hypodermic needle?

John in Martinez came up with at least one method by which the small hole in a needle is made. Start with as small a metal tube as can be made, heat it, and stretch it as small as it can be made while still retaining the hole.

This may not be the only way such needles are produced, and I’m aware that certian types of needles (well, at least, but perhaps only basting needles, and these are indeed large enough to have holes machined in them) have holes in the sides of the tube.

This page was last modified on Monday, 11-Oct-2004 20:04:16 PDT.


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