SCHD24 Inner Channel Air motor(4 or 2 hole)Low speed air motor:1: 1 direct drive waterSpray: Inner channelHole type:4 holes or 2 holes Rotation speed:20,000rpm Send InquiryProduct DetailFacebookTwitterLinkedInWhatsAppPrev: SCHD24 Inner Channel Air motor(4 or 2 hole)Next: SCHD16 External Air Air Motor (4 or 2 hole)