1 year warranty. 
Introductions: 
No load Rotation: 7200r/min. 
Range of included Angles:5º to 60º(Grinding wheel protrusions use 120o). 
The diameter of the Grinding: 60mm. 
Size: 100(W)*130(H)*190(D)mm. 
Power voltage: AC 100/ 110V 50/60Hz 220V. 
Power: 60/70W. 
Thermostat: 75℃± 5℃. 
Working time: 5min. 
Tungsten Diameters: 1.0, 1.2, 1.6, 2.0, 2.4, 3.2mm.