After making two saw cuts in a 12 inch thick block of limetone its time to use my newly fabricated angle iron wedges. The cuts are less than 3 inches deep.
Two pair fit snugly in the small 1/8th inch wide saw cuts
After some tapping with the sledge the thick block opens along the line of the two saw cuts .
Here's what they look like from the side. They do a good job of splitting the thick stone block and unlike feather and wedges, there are no unsightly drill holes to dress out. After the saw marks are pitched off, the big block will have a new natural face without a lot of extra chiselling or hammering