The Knipex 90 20 Series Cutter for cutting thin walled plastic pipes (e.g. aluminium armoured plastic pipes), flexible plastic and rubber hoses up to 25mm diameter. The tool is made of tough fibreglass reinforced plastic for added strength and durability. With a blade made of high-strength special grade steel, that has been oil-hardened and tempered. They have exchangeable blade have opening spring and locking lever for added grip. Not suitable for cutting steel. Cutting Capacity: 25mm.