Calculated Industries 4088 Machinist Calc Pro 2 Advanced Machining Math with Materials Machining-specific keys: surface feet per minute, inch per tooth, inch per minute, inch per revolution, # of teeth, depth of cut, width/length of cut Choose from 20 popular materials and six different processes - face milling, end milling, slot milling, turning, boring, and drilling Calculate for cutting speed, spindle speed (RPM), feed rate (IPM), cutting feed, feed per tooth/chip load, # of Teeth, Radial Chip Thinning adj factor Spend less time looking up your most-needed calculations on charts in books or on the Internet and more time machining Includes Armadillo Gear protective hard case, long-life CR2025 battery, Quick Reference Guide and complete easy-to-follow User's Guide