12 inch , Tension Hacksaw, Large Comfortable Knob Allows For Easy Blade Change and Comfortable Tensioning, Blade Can Be Adjusted To 90 Degree Angle For Flush Cuts, Has A Robust, All Metal Frame and Full Grip Handle To Help Protect Knuckles, 4.375 inch Cutting Depth, 12 inch Fixed Blade Length, 225 Pound Blade Tension.