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cutoff
In theoretical physics, cutoff (AE: cutoff, BE: cut-off) is an arbitrary maximal or minimal value of energy, momentum, or length, used in order that objects with larger or smaller values than these physical quantities are ignored in some calculation. It is usually represented within a particular energy or length scale, such as Planck units.
When used in this context, the traditional terms "infrared" and "ultraviolet" are not literal references to specific regions of the spectrum.
I make a 3D printed Vacuum Chute to aid in making 300 Blackout brass from 223/5.56 brass. It speeds up your cutting by eliminating the need to stop and leaves very little to clean up afterwords. The 223/5.56 necks and brass shavings will be vacuumed up and the remaining brass to be converted...