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100% brand new,made of high quality steel.
Heat treatment process, High hardness, toughness.
Hard enough to handle all kinds of stones.
Very easy to use.
Double O-rings back up.
Remember five details, you will use it well:
Drilling keep straight
Hole depth longer than feather
Holes spaced 3" to 4"
According to the order beat
The thickness of the stone is usually limited to three times the length of the wedge within range.
9 16 Wedge and Feather Shims Concrete Marble Granite Rock Stone Splitting Hand Tools Pack of 7 B071NFD86L