Usage:Boat,Fan,Home Appliance,Electric Bicycle,Car Model Number:775 Type:Tubular Motor Rated voltage:DC 12V (12-24V) No load speed: 12V 4000rpm 24V 8000rpm Power:100W Shaft diameter:5mm Shaft length:17mm Body length:67mm Front steps diameter:17.5 mm Former high level:4.5 mm Body diameter:42 mm Motor Overall Length:98 mm Diagonal installation pitch:29mm Mounting hole size: Mounting hole:2 Clamping range:0.3-4mm The motor is with ball . , low noise. Built-in cooling fan. Used for polishing, drilling, cutting, etc. Durable and long service life. colour:Silver Material:metal Package Contents: 1 * drill clamp 1 * drill wrench 1 * bushing 1 * wrench 2 * screw 1 * 775 motor Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.