Features:_x005F_x000D_1. Designed for professional use, the Heavy Duty Circle Cutter will make clean cuts._x005F_x000D_2. Better and Faster - The tempered steel body features marked graduations on the beam for fast measurement and application._x005F_x000D_3. Multipurpose - Will cut plywood, laminates, composite boards, gypsum board, plastic, dry wall, rubber & many other materials._x005F_x000D_4. Great Value - This round shank circle cutter is great for making smooth cuts through most materials, including wood, composite, dry wall, Sheet, metal and more._x005F_x000D_5. Easy To Adjust - Adjust diameter of hole by locating the inner part of the cutter holders against the graduated scale._x005F_x000D_6. Changeable Center bit for thinner or thicker materials._x005F_x000D_7. Slide Bar marked in graduated metric for precise adjustments._x005F_x000D__x005F_x000D_Notice: Actual color may be slightly different from the image due to different monitor and light effect._x005F_x000D_Specification:_x005F_x000D_Material: carbon steel_x005F_x000D_Cutting diameter (mm): 40-300_x005F_x000D_Handle diameter (mm): 10-13_x005F_x000D_Chip flute length (mm): 50_x005F_x000D_Useful length (mm): 30-300_x005F_x000D_Overall length (mm): 120-300_x005F_x000D_Cutter length: 120-300 (mm)_x005F_x000D_Full length : 150 (mm)_x005F_x000D_Shank diameter : 10-13 (mm)_x005F_x000D_Cut holes: 30 mm - 300 mm_x005F_x000D_includes:1 x hole opener_x005F_x000D_1 x wrench_x005F_x000D_2 x alloy blades