NSK Ti-Max X-SG20L Mode D'emploi page 19

2) Connect the Irrigation Tube to the Internal Spray Nozzle firmly. (Fig.7)
Fig. 7
3) Insert the end of the Internal Spray Nozzle into the hole at the top of the handpiece
head, then attach the Internal Spray Nozzle into the slot on the Nozzle Holder. (Fig.8)
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Fig. 8