Pair of Heavy Steel Machinist (2 Hole) Blocks 3/4″ Holes 3″ Apart- Lathe Milling. Have scratches and marks from use and age as well as knicks on edges. No personalized name or brand name. Please see pictures for condition. Each block measures 6 inches long, 1 3/8 inches wide and 1 1/8 inches thick. Holes are 3/4 in diameter and 3 inches apart.