... freshman into professional work. Through s LY-450 saw blade grinding machineFeatures:1,This item is based ... item just maintain regularly,, it makes sure the precise of grind a long time3,We have made reasonable ... adjust The cutting Angle, serrated back gap Angle, saw depth and so on4 ,This machine consists of ... difference5,it can quickly adjust according to the saw bit thickness of change, and By a scale ...