1.The properly designed ventilation fan can maximiza the cooling of the motor thus increase the motor's sta bility,life and economization of electric energy.
2.The axternal appearance is consistence with somatology, easy to handle and labor-savmg.
3.The particular power connection is very safe,preventing the cut in the wire.
4.Four different edges (fine,  medium, coarse&rough adges)is foryour different demands.
5.Oiling device can ensure the lubrication,resist the expansion when heated and reduce the vibration, clean and without pollution on the cutting material.When cutting the synthetics and blends cloth, model 8629DS can choose the low speed to prevent the melting of cloth at the place ofturning.