Contouring Block, external face 30mm radius & internal face 28mm radius, EXTRA EXTRA COARSE. Dims:- 140 x 47 x 52 mm approx. Tungsten carbide grit abrasive, tough and long lasting. Popular with Stonemasons and for brick/block work, rubbing block, roughing out block.
Ideal for under cambers, grooves and fillets, rounding edges, corners.