... easy to repair , small size,low weight ,balance speed. Saw Blade SharpenerProduct DescriptionAutomatic straight line blade sharpener.the longth of ... Blade Sharpener is used for the plastic crusher blades and knifes sharpening for the recycling machine, such as crusher, shredder.the ... for a cariety of different types of cutter in furtures,printing ,textile and other industries,it also can be used ...