More from Amazon.com : http://www.amazon.com/gp/product/B0008GO6A6?tag=purrfectcatdi-20 <br /> <br />Calculated Industries 4050 Construction Master 5 Construction Calculator <br /> <br />Linear area and volume solutions convert dimensions including metric <br />Complete rafter roof and framing solutions hipvalley jacks and rake walls <br />Stair solutions are nearly automatic risers treads stringer incline <br />Built-in right-angle solutions automatic square-ups <br />Circular and arc calculations areas diameters circumference
