... handpieces 4, cartridge with folder Dental High Speed Handpiece Big Head Push Button1, have Storage2, CE certification3, all kinds of ... handpieces4, cartridge with folderModel: N-TU2 Big head push-button type high-speed handpiece1. Powerful drive. Durable, ... mm~∅1.6 mmnoise≤70 dBrotation speed300000-350000 rpmdescriptionbig head,push-button type,three water spray,cartridge with folderDear ...