SAE & Metric Ratchet & Socket Set, 50 Pcs, 1/4" Drive Size, DeepInnovative Four Flat Sides feature an anti roll and wrench ready design The 90 tooth ratchet tool offers 4 of arc swing and a slim profile design, allowing user to work in tighter and more confined spaces Comes with a removable inner tray which is perfectly designed to be stored long term in a steel storage chest Stamped with SAE and metric measurements on the flat side for easy to read visibility Durable carrying case for ultimate portability