Calculated Industries 4087 Machinist Calc Advanced Machining Math and Reference Tool<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>The Machinish Calc Pro combines all the most-needed machining calculations with step-saving chart look-ups</li><li>This item belongs tolevels</li><li>Item is manufactured in China</li><li>Speeds and Feeds – calculate for milling， turning and drilling; cutting speed， spindle speed (RPM)， feed rate (IPM)， cutting feed， feed per tooth/chip load</li><li>Built-in Advanced Drill and Thread Size Tables – save time and steps (Compliant with ANSI/ASME B1.1-2003 and ANSI/ASME B1.13M-2005)</li><li>Right Triangle Math – plus trigonometric functions， work in and convert between U.S. and metric units</li><li>Bolt Pattern Hole Layouts – enter start angle， number of bolts， diameter and optional x， y offset; calculate x and y coordinates</li><li>3-Wire Measure – enter Wire Size (or use calculated Best Wire size) and 3-Wire Measurement to calculate pitch diameter</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51aUBFgerBL.jpg" noproxy>