Profile: Handpiece Store specializes in providing insight to the selection and purchase of dental handpieces. Dental handpiece turbines are small, very specialized air driven turbines used in both high and low speed dental handpieces. A turbine is typically made up of multiple components including rotor, chuck, impeller, bearings and O-rings. High speed dental handpieces turn at approximately 400,000 revolutions per minute (rpm). Slow speed dental handpieces turn at approximately 5,000 rpm to 20,000 rpm. Because of the specialized nature, very high speeds, and extremely rigorous use of dental handpieces, the turbines that drive them are manufactured to the highest standards. Handpiece attachments consist of nosecones, contra angles and angle heads. Combined with a slow speed motor, handpiece attachments can provide a multitude of combinations to ensure that the user can obtain the comfort and versatility necessary to perform each preparation with precision. Most slow speed motors are vane type ranging from 5,000 to 20,000 revolutions per minute (rpm). The correct handpiece attachment can provide higher or lower bur speeds by varying the gear arrangement, similar to an automobile transmission. This greatly increases the range of use from a given slow speed motor.