Midwest Snips® MWT-C5 Compound Leverage 5-Blade Crimper, 8"Midwest Snips 5 Blade Crimper crimps duct ends up to 1 5 8" throat depth for tight fitting joints. Makes factory precision crimp to join duct. Feature compound leverage handle action that multiplies force applied to the handles for operator ease. Crimps duct ends up to 1 5 8" (41. 3 mm) throat depth Kush'n Kote textured handle grips. Made in USA. Specifications: Nominal Length: 8" Crimp Length: 1 5 8" (41 mm) Faster! Precision Milled Blades and tool