1. Semi - automatic hook winder. 2. Able to set - up the winding pitch. 3. Able to set - up the winding turns. 4. Able to set - up the direction of forward or reverse winding. Power supply: ac 110v / 220v / 240v 50 / 60 hz Compressor supply: 4 kgs / cm2 Power consumption: 500 w. Rotation spced: 50 r.P.M. Wire size: 0.1 ~ 2.0 mm 0.1 ~ 3.0 mm O.D. Of toroidal: 80 mm max I.D. (finished) : 4 mm min Height of toroidal: (max) 50 mm