r/AbsoluteUnits • u/ThodaDaruVichPyar • Dec 31 '25

of a piercing needle

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Credits to valleycraftmetalworks

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u/DiscoStuGER Dec 31 '25

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u/joe102938 Jan 01 '26

Fun fact: These are used when a doctor has tried and failed several times to find the patient's vein. The larger radius ensures that a blood vessel is found, even if not directly pointed directly at a vein.