The Milwaukee® Duct Knife is designed for optimal edge retention and durability. The stainless steel blade is engineered to stay sharper up to 5X longer when cutting flexible duct and insulation. The double edge blade allows for a wide range of applications. A full metal tang provides durability for tough cuts. Includes a durable sheath for easy carry and storage. What's Included: (1) Duct Knife (48-22-1920) & (1) SheathEngineered to stay sharp up to 5X longerLimited Lifetime WarrantyFull tang provides durability for tough cutsDurable sheath with belt clip for easy storage and carryStainless steel bladeFull metal tang for tough cutsDouble edged blade for more applicationsDurable sheath with belt clipLanyard hole