Center punch lock preformed band clamp feature a bolt-free design for a professional low profile hose assembly. These clamps can be quickly installed in the field using the center punch hand tool. Available in 300 series stainless steel and in galvanized steel. The Center punch clamp tool (as shown) is required for installation. A compact and economical tool for small diameter hose is also available. Center punch clamp thicknesses range from 0.25 to 0.31 inches, depending on the clamp diameter.For further information or products details,please feel free to contact us. Main Market:Russia, Spain,America, Italy ,Canada etc