Iron mines and mining--Iron County (Utah); Utah International, Inc.
Display of rotary tric-cone bit used with Stanton carbide. Used for drilling holes in very hard iron ore. Holes were then loaded with explosives. On picture, :Rl #2 666288 1485" 51 1/2 HR total."
Iron mines and mining--Iron County (Utah); Utah International, Inc.
Display of rotary tric-cone bit used with Stanton carbide. Used for drilling holes in very hard iron ore. Holes were then loaded with explosives. On picture, "784 Ft. 25 1/2 HR."
Iron mines and mining--Iron County (Utah); Mining machinery; Utah International, Inc.
Display of rotary tric-cone bit used with Stanton carbide. Used for drilling holes in very hard iron ore. Holes were then loaded with explosives. On picture, " Oct. 25 1952 #66289 482" 22 1/4 HR."