wedge and shims are a kind of manual tools that uses manpower to impact the metal wedge into holes on stone, thereby split stone. It is mainly used in splitting cracked stone and arch stone which by utilizing a wedge set can be separated into smaller or standard stone blocks. Wedge can also trim relative large and irregular stone blocks.
Each set wedge and shims consist of a metal wedge, and two shims. The shims are wide at the bottom, and tapered and curved at the top. When the two shims are placed on either side of the wedge, the combined width of the set is the same at both ends. The depth of drilled hole depends on the length of wedge.
