HandiFoam Fireblock West is more effective than many traditional fireblocking materials for the blocking of flames and smoke in concealed penetrations

The ratcheting-lock system secures the blade with the simple turn of the dial

Adjustable nose clip helps provide a custom fit and secure seal

000 RPM motor delivers fast cutting in drywall

Memory-free hinge design allows for ease of installation

OLFA 18mm LBB Ultra-Sharp Black Snap Blade - 100 Pack Caulk HandiFoam Fireblock West is moreUp to 25% sharper than standard blades Premium Japanese tool steel Eight (8) segments per blade Fits most 18mm snap knives Get a Competitive Edge OLFA 18mm Heavy Duty Ultra Sharp Black Snap Off Blades are the solution for precision cutting. Premium Japanese carbon tool steel provides durability. Dual honed black blades are up to 25% sharper than standard silver blades. Each blade offers eight (8) segments per blade for volumes of accurate cutting