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World Precision Instrument Cannula Holder for CMA 7, 11 & 12 Guide

Supplier: World Precision Instrument 505255
The 505253 and 505254 models differ in the way they hold the cannula. The 505254 holdes the cannula away from the shaft of the probe holder while the 505253 holds the cannula vertically directly in line with the shaft of the probe holder.
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