Wood chipper Knife Wood chipping machine,chipper blade Material:Solid A8,O7 Size:400x140x8mm,slots:31.85x52mm-2,single egd Wood chipper KnifeWood chipping machine,chipper blade Dimension Tolerance: length±1mm,wide±1mm,thickness±0.05mmPitch Dimension: slots,203.2mm±0.5mmSurface roughness of egde:Ra0.8um