A µm is a unit for measuring length and is generally used to measure the thickness of a material. 1 µm is equal to one thousandth of a millimetre, i.e. 0.001 mm.
A µm is a unit for measuring length and is generally used to measure the thickness of a material. 1 µm is equal to one thousandth of a millimetre, i.e. 0.001 mm.