W&H 945, Instructions For Use Manual

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6. Technical Data
Technical handpiece 945
Transmission ratio 1:1
Motor coupling acc. to standard ISO 3964
Instruments acc. to standard EN ISO 1797:2017 (ø mm) 2.35
Length approved by W&H (mm) 45*
Chucking Handpiece bur shank
min. chucking length until back stop*
max. motor speed (U/min) 40,000
* If the rotary instrument is not inserted up to the back stop, the minimum chuck length must be maintained. In this case, or when using rotary instruments longer than
45mm, the user must ensure by correct selection of the operating conditions that there is no danger to the user or third parties.
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