Klein Tools 86550 5-Blade Crimper Compound-leverage mechanism that produces precise indentations in stove pipe and round duct with just a squeeze Crimps 24-Gauge CSRM and 28-Gauge SSSM All steel construction with nickel-plating for long life and durability Hardened steel handles include hand guards with vinyl grips for added comfort and easy operation Overall Length: 9-Inch; Weight: 1.00-Pound