Dental High Speed Handpiece Converter hole Changer 4 to 2 Holes
The Converter is named according to the dental chair,
For example, if you wants to connect a 2 hole handpiece to a 4 hole joint of the dental chair, first the dental chair conected with a 4 to 2 converter,
after this you can connect your 2 hole handpiece with the dental chair.
This is 4 to 2 hole converter.