Description: Material: Using high hardness Spring steel material, not easy to damage, has long service time. Square/Hex Shank: The square shank type suitable for connect with the electric mallet to use, the hexagon type suitable for connect with the electric pick to use. 12/16 Teeth: The teeths of the hammer is points teeths type, which can give you a better using experience. Wide Applications: Can be used for concrete chisel, bridge, slabstone, wall, cement pavement chisel, has wide applications. Portable: Small in size and easy to carry, you can take it with you easily and to anywhere you want to use it. Specification: Material: Spring steel Color: Silver Types: A(Square Shank 12 Teeth), B(Hex Shank 12 Teeth), C(Square Shank 16 Teeth), D(Hex Shank 16 Teeth) Size(HxL): Type A: About 35x120mm/1.38x4.72inch Type B: About 35x180mm/1.38x7.09inch Type C: About 35x140mm/1.38x5.51inch Type D: About 30x210mm/1.18x8.27inch Package includes: 1pc x Concrete Chisel Bit