The 1-inch flat chisel blade in black coated steel is intended for dry use. It's included in the starter kit, along with the Waveblade, a 3-inch black steel blade, safety glasses, gloves and custom carry bag. The kit retails for $399. The stainless steel 1-inch blade for underwater use retails for $24.99, and extra black-coated steel blades cost $19.99. Take a look at www.waveblade.com.