YaeTek 7 PCS 9/16 Plug Wedge Feather Shims Concrete Marble Granite Rock Stone Splitting Hand Tools

Key features

• .Used to split the hard stone,rock,granite,marble, concrete.
• Color: as shown in pic, Specifications Diameter 9/16"（14mm）,(Use 1/2" hammer bits can be).Size: 14 x 100mm/0.55 x 3.9 inch
• The concept of these devices is that they split rocks by applying pressure from the inside going out. These wedges are small but can exert an amazing amount of power.
• High-quality steel, heat treatment process, High hardness, toughness.
• Attention: Only drill to the depth of the feathers (shims). Any deeper may lead to inconsistent cleaving or difficultly even cleaving the rock. If the holes are too deep the best you can expect is a crooked, uneven break. All feathers and wedges work best when the holes for each are evenly spaced and drilled to the same depth. This will give you the cleanest, most precise break.