"The TorqueMaster™ Quick-Disconnect TM5 is engineered for comfort and precision featuring a high torque motor with a speed range up to 5,000 rpm. This ergonomic handpiece is excellent for chair side adjustments, post excavations, and hygiene procedures. Compatible with straight handpiece burs, mandrels, as well as Doriot/U-type contra angle attachments. Includes the 4-Hole Quick-Disconnect Swivel Coupler (#50134).