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