Stanley 0-11-983 Hooked Knife Blades (1996) - Pack of 5 The 0-11-983 is a Pack of 5 Hooked Stanley Original Blades. If you’re cutting sheet material, using a standard trapezoid-shaped Stanley utility blade, you might cut through to the layers beneath the sheet you wish to cut. To work around that problem we would recommend buying a Stanely Hooked Knife Blade. This allows you to quickly and easily hook the blade over the end of the sheet you wish to cut, then draw back, cutting only that layer of sheet material. Features: Also ideal for plastic sheeting as used in packaging industry Blades fit all Stanley knives Sharpened hook blade with point ideal for penetrating cutting sheet material, in particular floor, roof and plastic coverings  Specification: Thickness: 0.65mm Length:  50mm