20 Round Hole Bezel Punch & Block Metalworking Tools. This is a new 28 degree round bezel block and punch. Polished hardened steel punch is used for forming tapered bezels. A single punch fits all depressions. Made in Italy. The block is case hardened and has highly polished, tapered holes. Has 20 holes that range in size from 5 to 20 mm (3/16" to 13/16"). The block measures approximately 5 3/8" x 4 11/16" (137 x 118.6 mm).