... 2 holes and 4 holes for choice push-button handpiece ;2.Triple water spray ,high spraying performance, cooling treatment ... to product net weight, kindly note weight data for reference only, please confirm weight with sales before ... DTS in 2010, D stand for dentist, S stand for saler, T stand for a pair of balances,which means ... Dental Handpiece Torque head push button type with best quality for sale