20 Pcs 9/16Inch Plug Wedges & Shims for Concrete Rock Stone Splitting, 20* stone clip, Black

Set contains one central wedge plus two matched outer wedges. Start by drilling the quarrying-designated hole and clearing any loose powder from it. Turn the pair of outer wedges so their large faces are opposed (flat-to-flat) and insert them into the prepared hole. Finally, place the central wedge with its small end between the two outer wedges (upside down) and drive it with a hammer to split the stone.