Kett metal cutting shears are the standard in the business, if you are using another brand chances are you are still probably using a Kett head and shear blades. For cutting 14, 16 or 18 gauge steel a double cut Kett Shear is a great option. One problem with most metal shears however is it can be difficult to make tight radius cuts or work with corrugated metals Kett makes a profile shear for that. Kett Tool also makes scissor shears and fiber cement shears for other cutting applications.