Manufactured to a very high standard from steel and fitted with four standard 12mm wide x 50mm long tungsten carbide double-sided replaceable knives. The cutter head has two 14mm scribing cutters at each end of the block to create a perfect square corner. This block is capable of a very fine finish and would be ideal for production runs of materials. Maximum rebate depth 30mm, depending on washer and fixing nut diameters. Available in 30mm bore only.