Ring Shank Flat Coiled;Smooth Shank Flat Coiled;Screw Shank Flat Coiled; Ring Shank Conical Coiled;Smooth Shank Conical Coiled;Screw Shank Conical Coiled;Screw Shank Conical Coiled. Shank Diameter: 0.083", 0.090", 0.099", 0.113", 0.120", 0.131". Length: 1", 1 1/4", 1 1/2", 1 3/4", 2", 2 1/4", 2 1/2", 2 3/7", 3", 3 1/4", 3 1/2", 4". Our products are suitable for all kinds of pneumatic nail-jetting guns with different specifications made in various countries in the world.