Alternate bevel sawblade for sizing single or stacked boards (chipboard, mdf etc), without coating. used in combination with a conical scorer. revolutionary new production process gives blade a much higher durability. suitable for use on a panel sizing machine with pressure beam. specification:. Dimensions. Diameter=500 mm. Bore=75 mm. Kerf=4.4 mm. Plack thick=3.0 mm. No. of teeth=72.