200-1/21 Dremel Two Speed Mini Rotary Kit with 21 Accessories 200-1/21 Dremel Two Speed Mini Rotary Kit with 21 Accessories features two-speed simplicity and versatility ideal for multiple applications and materials and two-speed control allowing to set speed at 15,000RPM and 35,000RPM with the flip of a switch. 200-1/21 Dremel Two Speed Mini Rotary Kit with 21 Accessories features cool-running ball bearing construction for smooth and quiet operation and replaceable motor brushes for extending tool life. 200-1/21 Dremel Two Speed Mini Rotary Kit with 21 Accessories features 1 multipurpose guide and 21 accessories for sanding, cutting, grinding, or polishing applications.