Besides the basic rpm/sfm, ipm/fpt, Math Conversions and Drill Chart References, the new Android version of the Machinist Journeyman app from Smart Calculations LLC includeds advanced Milling Calculations such as Radial Chip Thinning Factor, Ballnose Effective Diameter and 45 Degree Lead Milling.

With main selections for Milling, Turning, Drilling and Math, there are Tap Feeds for Rigid and Tension holders, Tap Drill Sizes, Threading Helix Angles, Smallest Effective Diameter for G96/G97 options and dozens of other useful calculations are in the Machinist Journeyman App.

For the industrial saleperson, there are also calculations for Profit Margin, Discounts and Costs to assist you in your daily efforts.

The apps are on sale on Google Play and Apple's App Store for $9.99.