20,000 RPM Maximum Operating Speed.
Handpiece Specifications: length= 8-3/32″ / 205.8 mm, weight=1-lb. 2-oz / 510 grams, diameter= 1-1/64″ / 26mm at chuck end, CE compliant.
Comes supplied in Kit K.1020 and Dual Handpiece Kit K.1055. Also works with the same HP4-917 Control Unit that comes with Micromotor Kits K.1070, K.1080 and K.1090.