Perma Grit Wedge Block 280mmx51mm Coarse /Fine (74469)The Wedge Block is cut at and angle of 45 Dims. approx. 320 x 52 x 41mm. The wedge shape enables the user to see clearly where they are sanding, and to sand into tight corners without knocking your knuckles. Flat sanding surface, coarse grit one side, fine the other. When placed on their edge, you are able to sand a perfect right angle. Use to profile edges, feather edges, block sanding, square off materials or sand a perfect dihedral. The grits is