Steady progression in granite quarrying Stone World
Jun 04, 2003· Drilling methods The large block now separated from the quarry wall by the channel and lift cut is referred to as a "bench," and it is typically about 40 feet long, 30 feet wide, and 15 to 17 feet in height. In 1912, Boutwell, Milne Varnum Co. channeled the largest block of granite on record, containing about 500,000 cubic feet of granite.