- Size indicates recommended hole diameter
- Each option includes a package of five sets, with a set being one wedge and two shims (a total of 5 wedges and 10 shims)
Preparing the Stone
- Stone Location: If possible, position the stone (or choose a split plane) that will allow an isolated portion of stone to fall away from your split. (e.g. Place the stone on a piece of lumber to create a fulcrum on the bottom side of the split plane.) When splitting stones that are partially buried or splitting off sections of ledge/bedrock, expose as much of the stone as possible and focus on splitting off fully exposed sections of stone.
- Layout Holes: Use a straight edge to mark hole locations very 4-6in on-center across the top and sides of the stone (if necessary). This will establish your intended split plane. Keep the first and last holes about 4-6in away from the outside edges of the stone.
- Drilling Holes: Hold drill upright and steady during drilling to ensure each hole is plumb or drilled along the same split plane. Drill holes at least 1/4in deeper than the length of the wedge. Clear the holes of any excess stone dust.
Making the Split
- Wedge & Shims Placement: When properly positioned, about 2/3rds of the wedge should protrude above the hole from between the two shims. It is helpful to preassembling the Wedges & Shims in this position before placing them in the hole. Make sure the shims are positioned perpendicular to the split line (i.e. not facing hole to hole).
- Splitting: Use a light hammer to start tapping the wedges in sequence, firmly but without forcing, to build gradual, even pressure along the entire line of Wedges & Shims. Aggressive or forceful hammering will cause unnecessary damage and wear to the Wedges & Shims. If the wedges become too firm before a crack develops, allow the Wedges & Shims to briefly “rest” before continuing to drive the wedges into the stone.
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