guide coupling

guide coupling

[′gīd ‚kəp·liŋ]
(mining engineering)
A short coupling with a projecting reamer guide or pup to which is attached a reaming bit, which it couples to a reaming barrel.
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It brings an additional level of flexibility with liquid light guide coupling to the microscope, which allows for maximum uniformity without adding mechanical vibration, as well as a convenient form factor and smaller overall footprint.
TruEdge[TM] technology - LED-to-light guide coupling technology which delivers 93%-96% of total LED output to the light guide;