For a glasses shop in glass and plastic lens edging, trimming, polishing. 
                                DC motor,big power,high speed rotating grinding wheel,fast grinding,
                                  facilitate water drainage.
                                Single-wheel holder and double-wheel holder which can be choosed. 
                                Power:120W
                                 
                                HE20
                                Single 20mm of grinding wheel.
                                Grinding wheel size:100x20x14mm, rough grinding:180# 
                                 
                                HE30
                                Single 30mm of grinding wheel. 
                                Grinding wheel size:100x30x14mm, rough grinding:180# 
                                 
                                HE35W
                                Single  35mm of rough grinding and fine grinding.
                                Grinding wheel size:100x35x14mm, rough grinding:180#, fine grinding:240# 
                                 
                                HE35WV
                                Single 35mm of rough grinding, fine grinding,edge groove grinding. 
                                Grinding wheel size:100x35x14mm, rough grinding:180# ,fine grinding:280#, groove grinding:320#