Kreg Multi-Mark, Handy Multi-Purpose Marking & Measuring Tool, For Household & Jobsite Applications, Features 3 Different Scale Configurations, Built In Level, Handy 3/16" Reveal, Layout Mitered Corners, Set 3/16" Reveals, Transfer Measurements, Align/Square Your Projects, Set Bit/Blade Heights, Marking For Layout, For Kreg Jig Pocket Hole System.