Two styles 1.Fixed speed 2.Speed regulation( 1-6 gears) Fixed speed Rated power: 130W Machine length: 185mm Machine diameter: 50mm No load speed: 12000rpm Rated voltage: 220V/110V Frequency: 50/60Hz Inner diameter of saw blade: 16mm Saw blade diameter: 75mm Speed regulation( 1-6 gears) Rated power: 165W Machine length: 195mm Machine diameter: 50mm No load speed: 6000-14000rpm Rated voltage: 220V/110V Frequency: 50/60Hz Inner diameter of saw blade: 16mm Saw blade diameter: 75mm Package selection: Long life motor,Pure copper motor, durable High temperature resistant all copper enamelled wire, anti overload and anti burning machine, which greatly improves the service life. High strength wear resistant quenched gear High temperature quenching is more wear-resistant and durable Small machine,skill mastery Comfortable grip, light b6dy, easy work Grinding head installation 1 .Put in the collet 2 .Screw on the matching cap 3 .Put in the grinding head 4 .Press and hold the locking torque and tighten it with a wrench Diamond tablets installation 1 .Insert the washer 2 .Add diamond tablets 3 .Put in two rubber washers 4.Screw on the nut and tighten it with a wrench Electric grinding function grinding head installation 01 .Metal head The metal head is flexible small and easy to operate 02 .Six speed regulation Six gear speed regulation design, speed optional, wider application 03.External carbon brush The external carbon brush is easy to replace. Prevent the motor from burning out, and the use is flexible and convenient 04.Pure copper motor Precision manufacturing higher power and longer service life