This blade can cut materials with thicknesses up to 2 mm and fits directly into the Portrait 3 and Cameo 4 series machines without needing an adapter. The 2mm Kraft Blade allows you to cut specialty craft materials, such as chipboard, acetate, leather, and craft foam. The Strong Tack Cutting Mat may be recommended for use with some materials when using the 2mm Kraft Blade. Please visit the tools compatibility chart for further information on tool compatibility. Product Details: Blade Material: Stainless steel Adjustment Method: Manual adjustment (turned by hand)  Blade Length Range: 0.1 mm - 2 mm For use in cutting: Chipboard Acetate Craft Foam Leather Select Specialty Materials Compatible Machines: Silhouette Portrait® 3 Silhouette Cameo® 4 Silhouette Cameo® 4 Plus Silhouette Cameo® 4 Pro * Not compatible with older cutting machine models